Speaking as someone who was new to Trek as a whole and has less than average nostalgia for TNG, my problem with TATV as a finale is the idea that every Trekkie and their dad was dying for more TNG content. The one thing people had on their bucket list was seeing Riker as captain of his own ship and it took another fifteen years before we saw that (coincidentally, from a showrunner who considered ENT his fave Trek series!).
I mean, TNG fans had either largely moved on from the franchise or actively hated ENT, so even this regurgitated retelling of the weirdest episode to use as a framing device wasn't giving them anything new, either.
And while I wish Frakes, Sirtis and/or Spiner had better sense than to agree to do this, the onus was on B&B for putting them in that position in the first place and creating animosity amongst the two casts that never needed to exist.