The tweet doesn’t feel any different to me than when I complain that my end users need to learn to try looking up the answers to their own questions. People asking easily googled or nonstop questions is a moderately annoying part of my job, and I vent about it when it gets on my nerves too much. Every job has its annoying parts, and we all complain about them.
From what I’ve read about being in the drug testing pool, it really is a massive pain in the neck just in general and not exactly fun for anyone when the testers do show up. I’d gripe occasionally too. I don’t see any reason she should have thought process of “I’m going to post this one-liner about why my job is annoying today because I want to vent” to “If I post this people are going to think WADA is deliberately targeting sexual assault survivors.” Maybe if I spent more time on Twitter it would be logical, but from where I’m sitting, that’s a leap.