Just bringing Orlando up to match Tyson and Dean's day should fix things with his 19 since it's basically there already. Just a little more before or after the fade to black I think, maybe more of how Dave feels physically, mentally, etc?
As for Hoss, maybe it is a bit of a pacing issue. Just, it feels a little too sudden. So maybe more of a buffer after "let's try dating" would help make it feel less...fast paced.
And Roswell and Sal? I didn't mention them because both of their routes I have no real problems with. I think they have two of the more solid ones overall and their finales fit each of them just right.
Personally I don't mind a bit of fluff. I'd imagine if someone's playing the romance route they wouldn't mind it either. But of course I can't speak for everyone.
And outside of Tyson's aftermath scene benefiting from the little affection licking, and maybe Orlando needing something as well, I think the others are all generally good as is.