>You think Rob Pike was super happy about it?

He sure was happy enough to work for them (when he could work anywhere else) for nearly two decades. A one line apology doesn't delete his time at Google. The rant also seems to be directed mostly if not exclusively towards GenAI not Google. He even seems happy enough to use Gmail when he doesn't have to.

You can have an opinion and other people are allowed to have one about you. Goes both ways.

No one is saying he can’t have an opinion, just that there isn’t much value in it given he made a bunch of money from essentially the same thing. If he made a reasoned argument or even expressed that he now realizes the error of his own ways those would be worth engaging with.