Seeing Varner's follow-up, I at least get why he would think Zeke was out at home and to the audience (from his previous season). He was paranoid about Zeke pulling a Russel Hantz; acting one way on the previous season and the hiding it on a subsequent all stars season (since the Game Changers cast hadn't seen the previous season). Everyone on Heroes Vs Villians bitched about how their resumes were known, but Russell had this huge advantage of being an unknown quantity.
So Varner was wondering why this guy was on Game Changers and jumped to the conclusion "oh, he's the trans Survivor, that's why he was invited back, and I'm the only one to figure it out, I'll blow up his game!" Which, of course, is something you can't assume and then blurt out.
So I don't think this was cruel or malicious. Rather, a really terrible lapse in judgment from a desperate reality show fame whore. And he has been contrite and devastated by what he did, so I hope he learns from this and tries to turn it into a positive.
I actually think that some of the misogynistic bullying on One World was worse because it was done by bigots with malicious intent. Same for the religious manipulation on South Pacific, or Ben's racist mocking on Samoa. Who can forget Jaison putting the game aside and threatening to quit if they didn't vote out their "ally" Ben? Or Shirin refusing to let Will get his letters? At least Varner apologized for crossing the line and assaulting others, Ben, Will, and Dan never apologized for anything.
Edit: One World is the wrong season,I was thinking of the White Vs Red Vs Blue Collars season. Although One World did have Coloton's unapologetic racist statements, so throw that in too.