But if you keep your eyes open, you'll eventually notice that women (especially in tech) wind up having to "take a joke" all the friggin' time. And that gets really old.
I mean, seriously, look at this very example. Imagine that the "bro" command became a standard tool. Now picture a woman being stuck typing "bro" on a regular basis during her working day. It's never a big deal, obviously. But she still has to type it again, over and over, taking a tiny but not quite negligible emotional hit of feeling excluded every single time. It's not the end of the world, sure... but why would anybody choose to make things that way if there's another choice?