as a PRX fan who's been fucking frustrated with this team, there are so many reasons as to why Mindfreak usually botfrags and plays bad.
It's because half the team are so disjointed and don't know where to go or where to attack. He's said it before in the shangai vlog after G2 i think that he doesn't know where to put his smokes because the 3 no-brain aggressive players can't make up their mind on where to go and stuff. The job of the controller is to smoke and block sightlines so that his team can freely execute the site (or on defense its to block attackers from going in)
Jinggg even said it himself that PRX don't even know what they're doing, so that can really confuse the hell out of the only single controller player.
Mindfreak isn't the problem. I do even think that even if Karon were in his shoes, he'd definitely get confused as well and underperform.
a lack of an IGL also is the reason why this team just falls apart so much. There's noone to keep this guys in check in game. Alecks can scream all he wants but he's not in the game so he can't control high-pressure fast paced moments and decisions.
Though now that I think of it, maybe around 20% of the reason he underperforms is because he's not mechanically superior to other players, but the rest of it 80% is just PRX doing PRX things.
This is just what I've seen and if you think that I'm wrong then feel free to correct me.
tldr: mf botfrags because prx players dont know what theyre doing = mf confuse on where to smoke