You're racist for thinking that the word "black" used to refer to something as bad is at all related to dark skinned people.

I didn't know this was a thing. Is Google really that worried about being politically correct? Are there lots of people that care about this?

My initial impression is that this is an incredibly forced alternative and it makes me cringe a bit.

Who cares? The words weren't even created with skin color in mind.

That's a developer style guide, not a guide for all communication.

No one cares. Just give it up.