Disclaimer: I am a Google employee, who isn't listed as inventor on any patents here. I don't speak for Google and all the usual blah blah.

In my experience outside of Google, typically how this works is that you will get a visit from product counsel asking if you have any patent-able work. It's not your job to ask if it's novel enough; that's the patent lawyers job.

So they bug you for months while you are trying to get work done asking about what you are working on and how it works, and then file something on your behalf. I can't recall if I even needed to sign anything before a provisional application was filed.

The way that this is pitched is that it's a necessary evil. One needs a huge patent portfolio to protect your tech inventions, because when you are sued, you can leverage your portfolio to protect yourself. I hate this system and how it works, but it is a business reality.

I don't know Regina, but I think Hanlon's razor applies. It less likely that she woke up one day and said, "well, I want to steal other people's inventions today!", than, "oh I have a bunch of work to do and need to get counsel off my back."

It doesn't make what happened here right, but I think it's unfair to assume malice.