I think Kaaya definitely could have increased his personal stock had he stayed another year.
However, next year he also had no shot in **** of being one of the top 2 QBs off the board.
Between Josh Rosen and Sam Darnold, those two are both potential 1st overall picks.
Theres also Josh Allen from Wyoming whos getting 1st round hype this year as the next Carson Wentz but hasn't actually declared yet.
Then theres Lamar Jackson who is the top Dual Threat QB for next year.
My point is he may be a better player next year, but his actual draft prospects wont change much. There is no way in **** he gets drafted ahead of Rosen or Darnold if he stays. His only hope next year of not being the 3rd-5th qb taken (like he will be this yr), is that those two don't enter the draft.
So taking that into consideration, sure he may not be a 1st round qb, but I also don't think he falls past the 3rd round. So He's probably thinking that he'd rather get coached and prepared by NFL coaches while making money. Especially if he isn't ready for the NFL, the best place to actually prepare for the NFL is in the NFL.
Right now the way it looks, he will be drafted by a team to be the back up and future starter. I think that is a perfect situation for him to enter. If he can get drafted, sit on the bench and make money, and learn and work his way to being a starter in 2-4 years I think that is the best thing for him.
This isn't a mistake. This is the same thing Yearby is doing, except kaaya is going to be a much higher pick.