@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).