As far as I heard (but I am not too familiar) the CEO is essentially never in the office.

Also, according to the video, the office is in California. People were arrested (and fired) in NY as well (where there is no such an office).

Yes, insubordination is the key point. But it’s also the key point of a protest. The take away is that Google doesn’t accept a protest (any more?)

Re trespassing: in the Google offices everyone can pretty much go to any office. They realistically didn’t break into but, sure, they were in an office that wasn’t theirs