That argument is so incredibly stupid and sloppy that Fangraphs should be ashamed of publishing it. For the odd pitcher who gets by in the majors at 85, there are literally tens of thousands of men who throw 85 and would get destroyed. To succeed at that velo you need elite secondary skills: a great breaking ball or change, as well as deception and probably pinpoint command.
What’s the probability that the hypothetical woman who can throw 85 ALSO have Kyle Hendricks’ command or Ziegler’s deceptiveness and breaking ball? It takes thousands and thousands of 85 mph men to find 1-2 with the right secondary stuff to succeed. The first woman to throw 85 will almost certainly not have these other elite skills.