So Rey, flying to Exegol on her own and facing down and killing the emporer wasn't an act of sacrifice?
It sounds like your just throwing stuff to see what sticks. You give "not learning to ascend" as a solid reason, then directly after make a new rule about 'because sacrifice'. That's conjecture, not reason.
She had EVERY Jedi at her back, yet didn't ascend. She was the epitome of goodness, yet the guy who killed his own father (and countless others) in cold blood is redeemed and ascends (and I actually like Kylo).
Fine. Not "plot hole". But also not good writing or continuity. Just as much a negative as a plot hole.
Which models, specific to OT TIEs had hyperdrive - before ROS happened? Interceptors?