My brief contribution to this thread: I don't think the updated kisses leave room for interpretation. I believe they are clearly depicting a Tav that's besides themselves to be in that situation, no matter what. It unsettles me a bit, more than the original kisses ever did, and have expressed as much in the beta feedback thread. Not because Tav is happy, but what they're happy at, as Astarion's animations have remained unchanged and what he's doing and any possible reaction Tav could have comes with its own set of implications.
As others have said, this can hinder some people's roleplay (mine, for example) as much as the previous kisses did for others.

As I've said before: the worst offenders are the orgasmic face at the throat grab (or that kiss in general) and the face Tav makes after being slapped. I'd much, much prefer milder expressions like the one in the gif Larian showed in that community update, where Tav is raising an eyebrow but seems playful enough.