Well, I think there could've potentially been a good sequel. There were elements that deserved further exploration, like how Picard was affected by this life-changing experience. We should've gotten an episode like "Family" exploring what it was like for him to readjust to being Picard again after 50 years as Kamin. Instead it was pretty much forgotten.
So while I don't think this
sequel has been turning out particularly well, that doesn't mean a different
sequel couldn't have been worthwhile.