I don't believe that's the fault of the company, nor their responsibility. There are many people that feel forced to stay at toxic jobs, in the Bay Area as locals, because their lifestyle relies on having zero unemployment windows - e.g., they'll default on credit card and house payments.
Especially to those on a visa, the only one forcing you to remain in the USA / Bay Area / x company is yourself. To put it bluntly, no one is entitled to a job, and this applies to every person. In this scenario, it's not like strangers are being pulled off the streets by Pivotal to pair program.
This is a pretty poor model for how employment should work, morally. Let's put this model to a realistic extreme to see how it falls apart:
Suppose an employer asks a loved one to have sex with them or they lose their job. I mean, no one is putting a gun to your loved one's head to have sex with their employer, but something is clearly very wrong at this level right? Suppose they have an expensive debilitating medical condition that can really only be treated with good insurance (I have seen this firsthand where a medication can cost hundreds a month even with insurance (not great insurance but I was an intern, it was all I could afford)). Suppose they tried searching for a job with comparable insurance for years but always come up empty. Now when it's between whether or not you will go homeless with a debilitating medical condition or basically being raped, what would you choose? Frankly, I would rather be raped. I have been in the hospital with great insurance as well, when my condition was at its worst, and even morphine and norco did nothing to make the pain go away; I can only imagine how much worse it would have been on the streets with that kind of unending pain; I can only imagine never being able to find a job like that ever again because I will always be in unending pain and never be able to interview well. Fortunately, I got really really lucky in that I am an engineer who is an American citizen that can find jobs easily that dont require me to physically be there but, most people are not in my position. Back to the point, if someone is more willing to be raped than to not be raped out of fear of the consequences, that's pretty damned close to forced right?
Especially to those on a visa, the only one forcing you to remain in the USA / Bay Area / x company is yourself. To put it bluntly, no one is entitled to a job, and this applies to every person. In this scenario, it's not like strangers are being pulled off the streets by Pivotal to pair program.