Of course it is important. Because it is moral justification for why "color blindness" is morally superior to alternatives pushed by a subset of anti-racists. By referencing MLK, a figure often revered as a moral compass, your post presents anti-racists as a corrupted extension of the valid work done in the 60s.

My point is that if you want to complain about modern anti-racists, you are very likely also complaining about MLK's beliefs too. That can be a thing you can do, but your moral foundations become less automatically rock solid and require some justification.