As a person with ADHD, let me just volunteer the following information; the absolute last thing you want... the last thing you want is for a bunch of people with ADHD to be held on a boring farm. Without medication!
The phrase "herding cats" doesn't even come close. And ADHD is often comorbid with sleep phase disorder, which means I'm 100% alert all night without the medication that helps me sleep! That gives me lots and lots of time to be a problem!
I imagined they were inferring like "if you're taking Adderall we need your hyper efficient ass to come work on building a pyramid or something". Which i have to say, a team of properly medicated ADHDers would be the most streamlined project ever.