Self administered: there is a line on the stick that is the "insert to" mark, leaving to guesswork as to whether you've gone deep enough. Couple that with a mandatory # of swirls around each nostril. They watch you while doing so, in order to correct you if wrong. Of note, your window is rolled all the way up while inserting and swirling, so to protect the worker.
Hardly invasive: The stick comes in a sealed pouch. The test site worker tears the end of off the pouch and asks YOU to pull it out, thereby removing any/all cross-contamination from them. Once complete, you break the stick in half (at the mandatory line) and self-insert it into a plastic test tube thing which is immediately capped.
Minimal exposure: both you and the worker(s) are masked, and while you are inserting and swirling, you are directed to roll your window all the way up.
I maintain it is minimal risk.