It's the same old discussion about whether something is right just because it's legal or allowed. Just because a company has a right -- and an incentive -- to do something, doesn't mean that's a morally or ethically right thing to do.
In my opinion, what Whittaker is doing is, in a way, analogous to civil disobedience. And, just like with civil disobedience, reprisals are expected. It's worth keeping in mind that those reprisals aren't automatically right by virtue of being expected, just as her actions aren't automatically right by virtue of being similar to civil disobedience.
In other words, some of us feel we can't afford to, as another commenter put it, "leave your politics at home and let me do my job in peace". I believe this attitude -- that science and engineering should somehow remain orthogonal to and decoupled from ethics and morality -- to be downright pernicious to the society.
It's actually not about legality. I didn't even suggest that.
>Just because a company has a right -- and an incentive -- to do something, doesn't mean that's a morally or ethically right thing to do.
As I said, it is expected to do it. Because companies have their own interests. The interests of the shareholders in Google's case. And Google is expected to act to protect them.
This includes getting rid of employees that act to sabotage the company, in this case by publicly badmouthing it.