Does that still work in a one-piece racing suit? I assumed that's what they meant. I haven't worn one, but I can imagine some of them make things a little more complicated.
They unzip down the front. Yes, if you lack a penis you'd have to get your arms and butt out to urinate, but that's hardly the same level of challenge as having to end a dive, surface, undo all your seals, and then get your arms and butt out of a drysuit.
