It is a stinker.
Remember that you can switch to other companion when you are engaged in conversation.
Sure this is possible, but then we're really into micro managing something you might not even notice until it's too late.
As I said: it is a stinker.
Automatically casting "stabilize" thingy on downed companions when combat ends should address the issue, without compromising COOP play. Though I am willing to accept any solution Larian is willing to impliment - unless they don't see it as a problem, which at this point wouldn't surprise me. I don't think problem you mention is an issue if one plays with one or more coop partners, but I found it a common annoyance in my solo playthrough. In addition it's just one of those things that add to Dragon-Age-like dialogue cutscenes feeling out of place in BG3 to me.
