Yeah, I agree with that. Installing freaking rootkits on people’s personal device, with the express purpose of identifying them and knowing what their machine contains, is not OK. A multiplayer client should be as lightweight as possible and shouldn’t be able to fuck with a game.
Even if they agree not using your data for anything else, the next security breach on their servers will make that promise useless.
And I am not sure why one would trust big publishers to have any kind of ethics anyway. Do you remember Activision’s patent to manipulate matchmaking? That would specifically match players to reward those who buy microtransactions and create pressure on those who don’t?
Yeah, totally trusting those manipulative snakes with my private data with a big “do not watch” sticker on it.