I've never seen anything like this before.
They hire artists who receive a monthly wage and employee benefits. (to be fair: just "challenged" artists who have difficulties with the business part)
On the one hand, it's cool to just paint without having to worry about the next paycheck. On the other hand, you probably have absolutely no choice but to accept each and every commissioned work you're being assigned. But then, isn't that the same as in every other job?