The article mentions:

“John and Jill are not at risk. This is a controlled experiment and everyone working at Andon Market is formally employed by Andon Labs, with guaranteed pay, fair wages, and full legal protections. No one’s livelihood depends on an AI’s judgment alone.”

which was refreshing to read.

Literally the two sentences immediately following that quote are "For now. As we continue down this path, however, humans will not be able to stay in the loop and such guarantees will be intractable."

Personally I find the entire tone of the article to be creepy and disturbing.

I take that to mean "we won't let the AI refuse to pay them or otherwise break employment law" not that they could never be fired.