I think that's my issue with it. I have no problem with Luke rejecting the lightsaber. But him tossing it over his shoulder like that, then seeing the porgs messing around with it turned what could have been a really powerful moment into a gag.
Again, I actually have very little issue with what Johnson was trying to do thematically in this movie. I actually really like a lot of it conceptually. But the execution isn't there. The moments don't feel earned. The tone is inconsistent.