"building new companies with ideas developed at their prior places of employment" is VERY different from copying files and stealing IP. The former is the reason Silicon Valley is what it is today.
The Traitorous Eight (the highest profile case of what the OP was describing) is one of my favorite Silicon Valley stories. If you haven't read about it, you really should! https://en.wikipedia.org/wiki/Traitorous_eight
I'm not asserting he did either, there is a lot of grey there for sure. I'm saying that's the message a lot of people will hear from this result, for better or worse (my opinion is worse, but it's nothing more than my opinion). I think we agree here.