So a lot of stuff going on here with a TV show.
1) We don't get the whole picture of what led up to Will going off. It was alluded to briefly that Shirin accused him of duplicity/concealing food. She is not completely innocent victim, she accuses him of some fairly strong negative behavior.
2) He rightly, I believe, calls her on the food accusation.
3) He then goes completely off the ranch to many viewers with the personal insults, I believe thinking he's within his right to do so, or maybe he just snapped.
4) This "Triggers" Shirin into all the negative associations she has with regard to her personal life and whatever she had going with her family, because as she describes it here is another person accusing her of the same things her family used to accuse her of.
5) And then Mike plays SJW magnificently, and apparently judging by the various twitter photos gets himself and Shirin close, where they remain to this day.
This is my view on it. Shirin does start the altercation by accusing Will, and Will does respond appropriately to call her on it, then Will goes further and possibly thought he was just talking shit about Shirin appropriately, but many do not see it that way.
The whole "bullying" thing is a bit over the top in my view, it was definitely snarky insulting, but where in all of that is any defense of Will's background? Perhaps HIS family has a lot of snarky insulting?
I'm somewhat dubious of people that get to age 30+, are executives at a major corporation (Shirin, Yahoo/google executive) who then can play the victim card if someone calls them some names.
Shirin, it seems to me, has gotten far in life somehow, is she able to be broken on a few personal, albeit inappropriate, words?
I don't quite see it.
That's my view, Will goes too far, but not to the extent the internet is now curb-stomping him over, I think the whole thing was edited up to look pretty negative for Will to make for engaging tv, and we have yet to hear Will's side of it later.
It's be interesting for sure, I'm not rushing to judgment either way, it was a good episode but I think the internet can definitely go overboard sometimes, it's just a TV show.