Mistwell
Crusty Old Meatwad
Why would I play a Champion when I already know they won't be something I will enjoy - because I already know they suck out of combat and barely keep up in combat?
His standard was like requiring video evidence before he would convict - it's an impossible standard because the kind of evidence he is asking for doesn't exist.
First this was not an objection to just one subclass it was to the entire class so your attempt to reduce it down to the one is an absurd moving target.
Second, repeating your one-liner about his standard, with nothing to back up your one-liner, is meaningless. Of course you can meet the standard - play the friggen class and discover if it's a real problem! This has already been responded to, by him and me, and you don't appear to have any answer to those responses.
IF you don't play it at the table and actually find a problem with it, then I don't care about your white room theory that it might not be good. Play it and come back when you have an actual problem.