Heyyy, I have 160 hours in the game so I might be able to help.
As far as I remember, no other routes have as many choices that are determined by stats. Duliae's is unique in that way.
There is a choice you can make in Vadeyn's route that actually kills your chances of romance with him, and some hidden options in routes that require a certain stat level (like the high charm needed for a certain option when going to the boutique with Laceaga) but as far as I can remember, Duliae's is the only route where so many options are locked behind stat raising. Maybe he just has high standards lol.