" and the speed which the villagers turned from 'oh trusted nurse' to a lynch mob, seriously it was like 24 hours."
It was "like 24 hours" if you can't read. They explicitly state that rumours have been spreading, a new healer has travelled there, they received letters from the three villages, Letty then travels around the villages, Claude leaves for the city and returns, they say shit like " a while ago a merchant and healer came". It goes out of its way to show it occurred over a period of time. I'd also suggest she was never a "trusted nurse" she was simply a useful stranger, not particularly surprising as with hunts seem to be a thing in that country based on the current chapter.
Regarding your other complaints, to each their own, it doesnt seem any more contrived or rushed than the first arc and again the reason why the original country can't help her is more than explicitly clear, she's supposed to be fucking dead, even the court wizard didnt know about it.
I mean I think this is fine to pass the time, a 6/10 job, I'm not invested in defending it. But some of the complaints feel like people arent even reading it anymore.