He did mention wechat conversations and didnt show those, I could reasonably see it as a cultural misunderstanding + you know, tech bro not understanding women thing. I've had people non-maliciously make me feel unsafe all the time as a woman, it doesnt make it ok that it made things feel unsafe, but at least there was no motive I guess. Women are almost always on the alert especially if something bad has happened to them

As for the ghosting, she probably just assumed they'd continue discussing on one of the many social platforms they decided on (sounds like they communicated through like 4 different mediums?) and he got busy and didn't check one of the less used platforms. And if they decided to communicate through say WeChat, its possible that he added the wife to the emails but didn't include her on WeChat which might have also been a bad perception.

Honestly, Linus handled this terribly by making it a public spectacle with his first response. If anything making a public request for a dm to clear up misunderstandings (if there were any) would have been the way to go I think