Their point isn’t about this outcry, it’s about the reaction to the outcry.

Their anology is, if it’s wrong for a cis person to play a trans character then it’s also wrong for a trans person to play a cis character. They’re trying to criticize leftist hypocrisy.

Now, I think it was a minority of pro-trans people that criticize a cis person playing a trans character. But I guess their criticism of that minority is fair.