It was part of the story, that in large part of why he was disliked to begin with. If they didn't confront it, someone else would have, and CBS at least was able to control it. Jack and Michie at least got to the after parties unlike some people from the racist season. Sounds like Nick deleted all of his social media as soon as he could on Wednesday night.
They also forgive you if they, and more accurately the show, does it correctly. Cody was AFP in BB19, after being disliked early on, and came out of the house openly celebrating transgender people being banned from the military, nevermind being a rotten person to begin with. Bayleigh was belittling JC (who has his own issues) because of his size and raised a shit storm when he tried to serve it back to her and they ran her around this year with Swaggy when they were among the most disliked players last year. America was headed down the forgiving road with Michie once he was working with Nicole and targetting Christie.
The bottom line is the camera are always on and someone is always watching. These people are characters on a show more than players in a game.