rioter couldn’t get access for true stretch for him so he spent 3 hours doing nothing and listening to music while everyone else was warming up
What is he supposed to do? Practicing on a different resolution, especially when yours is true stretched, means nothing, it's a waste of time. It's a gigantic difference going from true stretched to any other res, he probably would've played worse if he tried practicing.
Practicing incorrectly with incorrect specs is more harmful than not doing anything at all. That's like saying to a basketball player to practice shots with his left hand when his right hand is in pain.