There doesn't seem to be a clear rhyme or reason as to who they approve and who they deny at this point. They just approved Efton Reid for Wake Forest, a player on his 3rd team in 3 years who left a Gonzaga team that didn't see any coaching turnover and had empty scholarships. But they denied RaeQuan Battle (twice), who's coach left for Utah State before he transferred.
Everything I've seen indicates every kid reports mental health as a reason for their transfer now if they need a waiver. It's going to be impossible for the NCAA to fairly police and diagnose which kids are really struggling and who are "faking it" to make a move. It seems like a lot of what really gets measured is how many documents you can put in front of them.
So, I guess we just hope Marcus has 300+ documents they are working through right now.