Yes, and they should really fix this, at least if Astarion is your romance. It should actually be possible: the Astarion-scene is already late in the epilogue, and they could push it last and make Tav follow and help Astarion. Having to flee from the sun need not be degrading — if you’re together. And they could just drink in a dark bar (with shuttered windows)?
Also maybe make the narrators comment more positive towards Astarion; that felt off (I just finished my second playthrough a week ago: the comment is more snarky against Astarion than it should be. After all, he gave up on the sun to stay himself).
They’d need some more motion capture for this (i.e. Tav throwing a blanket over Astarion to shield him from the sun), but as far as I can tell they have new mocap planned for added evil endings, so that may not break their process.
Karlach is the one who goes last and she has much the same problem as Astarion. Besides, new companion comments for Astarion's portion of the dock scene have been datamined, they just have not been made accessible. They are much nicer than the current ones, heck, they are even much nicer than the ones you currently get in Astarion's Origin. (Minthy is so vicious in Orign.) So there is really no reason to get overly emotional about that scene until we know how the dock scene will be altered.
Also: There is no hint that the group did follow through with their victory celebration after Astarion & Karlach left. Shart's epilogue dialogue made me think that the disbanded pretty soon after the scene. (I mean the one when she says that she would have offered to take in Owlbear after the fight but everything was so chaotic, that she didn't get around to it.)
