Oh but you forgot the insanely awesome benefit of being able to quit for any reason at any time, as if that wasn't already your unalienable right as a human being!
Yeah first time I heard this nonsense was with my current job at the new-hire interview. I live in an "at-will' state. The HR lady was like "we can fire you at any time for any reason, but the plus side of that is you can quit at any time for any reason."
Uhh.. the "plus side" is something everyone can do anyways. If you don't want to work somewhere you stop working there. They can't force you to get out of bed, drive in, and dedicate 8 hours of your life. That's not a "plus side." It's reality.
Yeah it's really unfortunate and messed up that that is literally the only recourse the workers have. And usually it's out of the frying pan right into the fire because all companies fucking suck. Corporate culture is so toxic.