The petition has specific wording about how the legislation would work. He was critical not because he didn't believe in the cause, but because he felt it wasn't well thought out. The reality is, art takes many forms, and sometimes you can only go see a play on the one night it's performed if you happen to buy a ticket to see it, and that's how the creator intended it. Art is not a one-size-fits-all field, and a half-baked piece of legislation would make innovative experiences in game design illegal.
He also pointed out the very real potential attack vector for malicious actors to effectively DOS small games at launch, ruining the experience for other players, causing the game to fail and be forced to release a means for customers to self host, only for the malicious actor to then make a profit on rehosting.
Everyone involvrd wants to get rid of scummy business practices, but this initiative is short sighted in how it describes the behaviour it doesn't like.
I mean...not that curious. It's his entire livelihood at the moment.