Why though? There is still QP, Aracde etc which wouldn’t force 6 stacks. There is also nothing wrong with being a scrub: http://www.sirlin.net/ptw-book/introducingthe-scrub
Let’s consider two groups of players: a group of good players and a group of scrubs. The scrubs will play “for fun” and not explore the extremities of the game. They won’t find the most effective tactics and abuse them mercilessly. The good players will. The good players will find incredibly overpowering tactics and patterns. As they play the game more, they’ll be forced to find counters to those tactics. The vast majority of tactics that at first appear unbeatable end up having counters, though they are often quite subtle and difficult to discover. Knowing the counter tactic prevents the other player from using his tactic, but he can then use a counter to your counter. You are now afraid to use your counter and the opponent can go back to sneaking in the original overpowering tactic. This concept will be covered in much more detail later.
And there is nothing wrong with that, they can still play comp, they just won’t be successful.:
Let’s return to the group of scrubs. They don’t know the first thing about all the depth I’ve been talking about. Their argument is basically that ignorantly mashing buttons with little regard to actual strategy is more “fun.” Superficially, their argument does at least look valid, since often their games will be more “wet and wild” than games between the experts, which are usually more controlled and refined. But any close examination will reveal that the experts are having a great deal of this “fun” on a higher level than the scrub can even imagine. Throwing together some circus act of a win isn’t nearly as satisfying as reading your opponent’s mind to such a degree that you can counter his every move, even his every counter.
Can you imagine what will happen when the two groups of players meet? The experts will absolutely destroy the scrubs with any number of tactics they’ve either never seen or never been truly forced to counter. This is because the scrubs have not been playing the same game. The experts were playing the actual game while the scrubs were playing their own homemade variant with restricting, unwritten rules.
It would only be enforced for competitive, just like at your local beach volleyball competition, you can’t enter unless you have a team of 4 people. Sure you can just go play at the beach with less people to have fun (QP) but of course there has to be a minimum rule for comp.
Similarly there is a general concept in software design called the ‘pit of success’. The idea being that you design your software in a way it is easy for people to fall into the right patterns.
At the moment that is not the case with Overwatch and we can see where full freedom in competitive has brought us. People turn on each other and blame the system, symptoms of a failed system.
I just fail to see why just like almost any other team based competition, why the minimum requirement wouldn’t be to have a valid team. Sure I guess you could just turn up and sub for a team with a man down, but the current system in Overwatch just doesn’t work.
(*) Please note the italicized text is taken from the link in this post