I feel like people HAVE responded to your concerns, you’re just not acknowledging them. When new characters get introduced people have reactions JUST LIKE THIS (see: Escapade, Somnus, half the mutants Ayala created, etc.)
Whether it was now or after the premiere, certain fans were going to have this reaction. Shoot, people literally lost their minds when Black Cat‘s bisexuality came up in Spider-Man 2 and that was nowhere in the marketing of the game (and was an incredibly minor detail).
Things are divisive because of the state of the world right now, and I promise this cartoon isn’t tipping the scales in either direction.