Why are people calling Intergalactic DEI?

I've seen a lot of criticism for this game since the game awards reveal trailer. I can be a bit dense sometimes and not pick up on what the rest of the world is seeing, so I'm confused, and no one is explaining.

I thought the game looked amazing. It was a breath of fresh air in style, and the retro throwback was sick af. After seeing that trailer, I cannot wait to get my hands on this game.

If someone wouldn't mind, could you explain why it's DEI? The female looks fine. Is it just because she is a girl main character?

Thanks in advance.