fwiw I'm not an EA and I generally agree with you. It's fine to believe they're wrong, but it's an entirely different thing to tell other people they should think they're wrong.

Isn't that how most disagreements shake out at one level or another, once you strip away enough of the garnish? I am by nature either blunt or an asshole, depending on whom you ask, and may have come across more as the latter here, but the core message is about the same as most disagreements: "I believe my position is right because ABC, your position is wrong because DEF, you should believe mine instead."