I'm not defending Google, here, because I don't know anything about them beyond what everyone else knows from the outside. However, what do you expect the reaction to be when you are an employ for a company contracted to provide services to a client who grants you certain access and privileges which you then abuse to pursue your own interests and investigations outside of the scope of what you were employed to do?
Hell, at the end of this video, I'm still unclear what point is trying to be conveyed. Is it just "the racial balance of the employees that I saw exiting the building for two days didn't meet some proper balance I had in my head, so I decided to start doing a socio-economic documentary on my employer's dime and after everything went to shit, because of how I was conducting myself, I put together a ten minute video to explain myself to future employers"?
I saw a lot of smiling faces exiting the building and getting into nice cars. I don't see what the big deal is that people who are temporary or part of menial data-entry labor are not part of the greater events and benefits and festivities of the company. I'm sure it's that way at most companies. I'm on the development side of things and I don't get to go to the big sales-team getaways in Cancun or wherever else they go. And I doubt that the janitorial staff and security staff are sharing in the staff-bonus compensation that I am. And none of us are getting the several million dollar company loans to buy our mansion that CEOs have gotten.
Perhaps this will be an unpopular sentiment, but I just got a strong vibe of "this is my chance to be a documentary film-maker".