The poster takes the view that the only things that are reportable for gameplay sabotage are the things specifically mentioned in the report text. If you look at the rules with this mentality then it would be a false report.
The poster also takes the unrealistic view that a report is always false unless it its ‘established’ to be true. Since intent cannot be established to a certainty this makes the category nearly useless and limited to symm teleporter trolling.
In my opinion, this view is quite questionable.
If you call 911 because you saw someone smash a window in a car across the street, get in, and drive off, you do not have 100% certainty that a crime was committed. The behaviour is suspicious enough to reasonably report to the police. Is it reasonable to have the police charge the caller with abuse of 911 if it turns out the suspicious person locked their keys in the car and needed to attend an emergency? Based on the posters logic for overwatch reporting, it would be, since intent was not established. If a player’s performance is so bad that it is indistinguishable from a player intentionally feeding then it is not a ‘false report’ to report them without establishing intent 100%. Ultimatley blizzard rather than the poster will make this decision when evaluating reports.
In legal jurisdictions depending on the system used weight is also assigned to the intent behind the law and precedent.
We know from intent statements made by blizzard and the devs that the gameplay sabotage category is not solely limited to the actions explicitly mentioned in the reporting box. Seeing as how blizzard also judges (i.e. not a neutral third party) and makes actions based on the report, it is reasonable to consider those intent statements when using the system.
In the reporting system update patch notes: https://us.forums.blizzard.com/en/overwatch/t/overwatch-ptr-patch-notes-march-24-2018/42826
"Report Menu
- The “Poor Teamwork” dropdown menu option has been removed
- The “Griefing” dropdown menu option has been renamed “Gameplay Sabotage”
Developer Comments: Due to player confusion about the most appropriate category to report players for poor or toxic gameplay, we are removing the Poor Teamwork option from the reporting system. Players should instead use the Gameplay Sabotage option when players actively harass or disrupt their own team with game mechanics or their actions. Players should not be reported simply for performing poorly, since everyone occasionally has a bad game."
Note how blizzard explicitly states that players who actively harass or disrupt their own team should be reported under this category.
Someone who locks main healer, especially within the context of a role lock system, and then refuses to heal knows or ought to reasonably know that their play-style will be disruptive to their team.
They also clarify that the ‘poor play’ note reflects general performance and off-days rather than intentionally playing poorly due to player preference.
From developer comments on updated player tools: Updated Player Experience Tools for 1.22
To help with the accuracy and clarity of reports, we are making a couple changes to the player report categories you can choose. The first change is renaming the “Griefing” category to “Gameplay Sabotage”. Griefing is a very broad term used in many different ways amongst the community. The intent of the category is to be used when a player disrupts the game or harasses other players through the use of normal gameplay mechanics. A clear example of this is Symmetra teleporter exits being placed at the side of cliffs so teammates immediately drop to their death. Another example is players intentionally allowing themselves to be eliminated by the enemy team. This is often referred by the community as “feeding” or “inting”.
It is NOT gameplay sabotage if a player simply makes a mistake or has a poor match. Everyone does that from time to time, even the very best professionals in the world. Players can also have a rough match without a lot of mistakes, simply because the other team is making better plays and performing well. For a player to be reported for Gameplay Sabotage, they must intentionally be trying to disrupt and harass their teammates or actively trying to lose. Note that playing a non-meta Hero does not mean someone is taking part in Gameplay Sabotage. Players who are trying hard to help their team to win should not be reported, regardless of the hero they choose.
Note:
"For a player to be reported for Gameplay Sabotage, they must intentionally be trying to disrupt and harass their teammates or actively trying to lose. " Emphasis added. Note the ‘or’ instead of ‘and’.
Intentionally disruptive or harassing play-styles are therefore reportable, as stated by the devs, even if the player is not a actively trying to lose, since it satisfies the first half of the condition.
Intentionally allowing your teammates to die when you could have used your kit in the generally accepted manner is disruptive and potentially harassing. It is not unreasonable for your team to expect that the support players support the team.