@Ryzaki I just felt that, surprisingly (because I often feel he's very very privileged in terms of being given content) he was particularly shafted, while other companions (even Wyll, from what I saw while datamining!) got a lot of consideration put into different paths, they have plenty to say that is unique in their own way, which doesn't really apply that much to about any path in Astarion's epilogue. Sad to hear Wyll was shafted in that way again, though.
I similarly to you think that plot exists and was intended (apologies if I misunderstood you earlier) but I think there are things complicating it. I don't believe it was /that/ badly written or executed (although it isn't extremely explicit or anything, but I can understand why because of the circumstances around the relationship at the time), but something I felt in regards to the Valentine's tweet was that I was getting a whiplash with how they were combining both sexy advertising for it with animations that seemed to be intended to convey a certain non-sexy message. I put it this way long ago, but it reminds me of how TLOU2 is like "Killing is bad and everything" and then markets the awesome killing gameplay. I do believe the facial animations were pre-meditated (that doesn't mean they haven't regretted it or decided to go in another direction or whatnot), but the way they decided to go about it both in mechanics and marketing was certainly mishandled (not to mention, that yes, even for what they represented they were too exaggerated).
I mean Wyll's still bugged to think people are Lae'zel so XD (also is bugged so he's giving me nothing but hostile greetings for some reason. booooo). But honestly Wyll and being shafted in BG3 more iconic duo meme at this point honestly.
Yeah some of the advertising is weird (again I bring up the Christmas special with the Mizora picture because my god that still bugs me). Honestly at this point I'm just chalking it up to misfired fanservice. Maybe they thought the horror faces were sexy for some reason.
Oh god you just gave me flashbacks to the TLOU2 discussions (good lord the rage)
(Abuse Warning)
Honestly as I said already I do enjoy dead dove content so my personal headcanon for the AA route was always it being an abusive relationship but more emotionally than physically. So the aggressive kisses in patch 6 turned me right off.
But honestly for me it's *very* badly written. Like the conversation you get the night he's ascended strikes me as some of the worst writing in the game frankly (God that I want sex choice lives in my head rent free). Which is crazy because the convo you get right after he ascended is fine. The player is forced into extremely narrow boxes (which is insanely unnecessary it was quite possible to get across Astarion's whole be my spawn or it's over without forcing the player into being hostile.) God I could go for ages on how much I hate that scene.
(good lord the rage) 
