driving for Uber is definitely entrepreneurship (source: Uh, I did Uber and Lyft for a year and a half, and did quite well, too). And it's also totally okay to complain about shitty contracting relationships. For example, the entrepreneurs of company X contracts a company Y to make some hardware, and the job is totally botched, but they can't do anything because a lawsuit is not worth the time/money.... I don't think it's unreasonable for X to bitch about Y since that provides a useful signal to others to not make the same mistake.

Not identifying with Uber drivers as entrepreneurs is a very classist attitude.