(Spoilers Extended) Abandoning the Nights Watch

I'm on my first re-watch of the show and just finished season 6. I know there's been a lot of talk about how Jon and Sansa never address how Jon was LITERALLY MURDERED. However, I'd like to point out that there are multiple other places where this should have been addressed.

Jon and his little friends spend quite a bit of time prancing around and gathering support to assist with their mission of retaking Winterfell from Ramsey Bolton. Not once does his abandonment of the Nights Watch is discussed. Not once does he explain how he's just come back from the dead.

You can argue that this was done off-screen.....But surly this would've caused some sort of BIG reaction from the other lords? I'm pretty sure that at least some of the proud lords of the North would have an issue with electing an undead as their leader.

Anyways, I find all this absolutely ridiculous. You can't keep something like that hush-hush. The wildings that are following him think of him as a God. I'm 100% sure that EVERYONE in the North would have heard about his resurrection by the time the Battle of the Bastards is over, but its never brought up. AT THE VERY LEAST there should've been Northern Lords questioning his abandonment of the NW. But even that is void.

What the hell?