Well, his crashed ship is still functional,
Not if you cut that scene in TROS, which I’m actually planning to do. It makes Luke’s display of Force awesomeness on Crait just look stupid.
and his conflicted feelings about it just emphasise that he let Han die. Because if he regretted or was even conflicted about his decision, he wouldn’t have cut himself off from the Force so completely. Toning down Luke’s “giving up completely” only makes him more of a villain.
But like I said, his only option of escape was cut off (at least in this version), so it’s not like he could do anything about it. It would just create the impression that he didn’t feel it was necessary to open himself to the Force, because he had no idea how much death and destruction the First Order were causing.