FrozenNorth
Hero
That wasn’t your claim. Your claim was that criticism of TLJ was “backfill” i.e. that criticism of the movie was because of racism and nostalgia. It wasn’t. It was a bad movie.Then you are not at all familiar with TLJ criticism lol. That's like saying "I've never heard anyone criticise TNG episode 2 for being racist" or something.
The fact that racists and people obsessed with nostalgia also hated it doesn’t make it not a bad movie.
And yes, if you undermine the premise of your movie, it makes the movie worse. Das Boot is a movie about a submarine crew that get trapped under the ocean and needs to fix the submarine to escape. If you then show multiple people leave the submarine than return without difficulty, you have broken suspension of disbelief.
TLJ was an extended chase scene between the First Order and the Resistance. During the chase scene, Finn and Rose left the ship, made a detour to Canto Blight, spent the night there, caught up with the First Order, caught up with the Resistance, then Rey caught up with the Resistance. It was like Looney Tunes when during a race Bugs Bunny pauses the race to set up a trap.