There's nothing wrong with using external sites to find groups?? People have been using IRC to group up since internet gaming was a thing.
And sorry, but we just aren't going to accept retailers bringing their shitty casual addons and QoL features into our proper, authentic social MMORPG, ruining it like the bastardised, Frankenstein trash that is retail WoW. The uproar against it will force Blizzard to act, mark my words.
And to the person who said "how do you know it's retailers that want these addons", easy answer: no one made it for Nostalrius private servers etc.