There's a fan Term that's been in use since the first Star Trek episode aired in 1966:I mean how it was explained in-universe. There's a big difference between "Actually Picard wasn't vaporised, he's undercover on the pirate ship" and the hypothetical "Actually Kruge didn't fall into lava on an exploding planet, ignore that whole scene, we're now saying that it didn't happen."
YATI = Yet Another Trek Inconsistency