that’s exactly it. the problem is that the people complaining about “leavers” don’t necessarily see the issues. they think the key is going fine because they don’t have the experience or situational awareness to understand what a disaster it’s going to be.
i had a 20 NW that fell apart on the first boss some months ago. one of the dps didn’t pick up an orb at all. one of them picked up an orb and then stood out at range the entire fight. after the tank bailed, the second dps said “well, at least i know i did everything perfectly”. that’s the problem, and it’s why GD posters think so many people leave runs that are going soooooooo smoothly.