But that doesn't mean the OP is wrong to feel like the Daisy creator is sort of an oddball thing to have tacked on. It's novel and a bit non sequitur, or at least not something the player would probably expect to have to do in normal D&D char creation. There's also no follow up there for several hours of gameplay, and what does follow is instead the big opening scene with the Nautiloid being chased by Gith Dragon riders.
I will concur that unless the feature develops a lot, it seems to me like a very clunky way of playing your hand to what could be a nice surprise. I suppose it's nice that Larian allows us to define what our PC is horny for (other then for example assigning it based on our race), but it could be done more subtily - they play their hand for too eagerly. Unless there is more to it, so that it does requre it's own character creation.