I disagree. It's a stagnant mentality.
I agree that utility HAs would be helpful. I created the pickup build guides for the optimal teddiursa, meowth, and munchlax along with calcs, descriptions, reasonings, etc., but I find several of my friends saying they prefer to use other pokemon for pickup or horde battling. While we have several mons that serve as the optimal choice, that doesn't mean it's the fun choice for a chunk of the playerbase. frisk dusclops would be fun to use. PokeMMO presents a lot of new options as well as balancing options that aren't available in normal gameplay. The addition of utility HAs would add a decently significant new variable that doesn't affect PvP balance and increases the options for the PvE base or meme builds.