aim training really isn't that hard to get into, they are a lot of good guides from people in the aim community to get better in aiming fast. Maybe they also have a really bad problem with work ethic if they can't get those basics done.
The biggest problem is obviously lack of good coaching, like even if players like Paradox and Skrossi have "okay-ish" mechanics they have really bad fundamentals: they take too many solo fights, don't set themselves up with util, do enough basic crossfires and sometimes completely don't understand how to play in situations with an advantage or disadvantage. It's not even strats a lot of the times it's just about how you should play in a tac-fps in general.
Either way it's a lot of issues that are lined up and dealing with them takes years even if they start to build academy rosters next year, results will take a lot of time and the playerbase needs to start grinding hard to make finding talent easier.