Not really, it's slimy because it should be obvious that it's the morally wrong thing to do. There's no tangible benefit to the users, only risk.
The fact that they only opt-out EU users, because regulation forces them, tells you all you need to know about the moral compass of PostHog.
This shouldn't even require regulation, but apparently expecting companies to act morally is a bloody pipe dream. Profit over morals and concerns for your costumers, apparently.