I just got around to watching the vid on the new kiss animations with different camera angles last night. Commented on it as well. Well without Tav looking like some witless scared kitten the entire thing is much better, I have no issues with A Astarion being a dominant personality, that's absolutely fine my gal ain't dumb she knew what she was getting into. My main objection was always that Tav behaving like a scared child felt all wrong and out of character and context.
What I find weird is these animations and, apparently, Tav's fear are occurring before end game, and could even be before the Durge scenes depending on what order you do things in. I'd find it hard to believe that the Emperor or Bhall would just let their chosen instruments be turned into quivering scared children by some upstart vampire (in their eyes rofl). A scared Durge would rip his head off and Empy would likely either take over Tav immediately or rescind elder brain protection and let the tadpole take Astarion.
So she isn't scared, that simply doesn't fit in the game as it stands - the frightened facial animations are just ridiculous.
However at the end of the day my feeling is that Larian changing the dynamic between 2 people so massively, half a year after game release, is overwhelming unfair to a loyal fan base. I don't know what they were hoping to achieve apart from make some AA fans feel awful and allow SA fans to say 'We told you so'.