> but not in an email

Sure, that benefits Google. But some people care more about ethics and don't want Google to get away with potentially illegal actions.

It benefits you as well, unless testifying in court about some careless thing you said in email is your idea of fun.

you can still get subpoenaed and get ripped to shreds by a $5k an hour lawyer

Also, it's worth noting that no Google employee could say any view except this one in this thread without getting fired. (Likely even if the alleged terms weren't so egregious.) While you may be one of 65,000 who feels listened to, we can't know how many have been silenced.

Well making complainants (grievances) verbally is not best HR practice they want everything documented nornmally

It's not about you. When there is a claim of, say, systematic rape at a place, it is both understandable and really offputting for random people to say "I work there and didn't get raped." If anything, it comes across as kind of tone-deaf and toyish.