MMO cancer infected every other genre. We're patient zero for all the garbage micro transactions, daily/weekly chores, and companies wanting you to play one game for the rest of your life.
People who like Warhammer were already going to buy, you have to appeal to people who hate Warhammer and wish death upon the average player, marketing 101 yo
That assumes they're competent enough to actually intentionally select the best units. Their in house testing is lining both armies up 6 inches away from each other and shouting pew pew pew