This episode was quite clunky. Very rushed.
I can accept most things... but what's going on up North is so poorly done. The men that are proud and swore to Jon, their king, are already turning on him? Didn't he explain what happened and why he left? Aren't Northerners the most loyal of them all? Seems very inconsistent. Even if it is under the persuasion of LF, they hate LF. So unless he has some kind of magic that uses his maxed out charisma as a range of effectiveness, it just doesn't seem believable.
Also, Arya was blind, trained to fight simply from senses, such as, sound. Yet she isn't aware that LF was outside that door? She was also not aware that she was spotted. I feel like her training was fairly rigorous and those skills don't just work by switch, they become innate. On top of all that, apparently he's been having her watched or somehow is always aware of her presence, so is LF also a faceless man?
I just can't buy this BS surrounding LF. Unless he turns out to himself be a user of magic or some other unique "thing" it is just getting silly.
EDIT: To add to that, in a prior episode they made a point to show the Ravens squawking at LF, a sign that he's being watched. So not only has he eluded a trained assassin, he has done this while avoiding the gaze of a being that sees ALL. LF's attempts can directly hinder the ability to fight what is coming, which directly conflicts with the TER as he is there to help defeat the white walkers. Seems legit.