Yes.
If they don't like it, they can keep supporting their older stuff. Or better yet, rethink their decision to impose a "live service" business model now that they'd actually be held accountable for it, and consider going back to giving users the means to run their own servers.
(Also, by the way, "security by obscurity" is bullshit. If disclosing their server-side code leads to exploits, that just means they're fucking incompetent. I have no sympathy at all.)