Jeremiah Smith went to OSU because they’ve been producing NFL receivers for the past two decades. It had nothing to do with Portal v. HS QB. Our starter (who we signed from high school) was graduating, so there was no incumbent to sell him on anyway.
You still need to sign QBs that aren’t instant starters. Everybody carries at least three scholarship players at the position. The developmental QB can be from HS, or it can be a young QB in the Portal. Oregon got both Dillon Gabriel and Dante Moore last year. But if I’m spending big money, I want a sure thing.