Not everyone is a software developer with companies fighting over them. Some really don't have options, and the choice is either get no income and be unable to pay your bills, or get screwed over but get some money to pay the bills.
Unfortunately, in this economy, it's probably more accurate to say "most people really don't have options" rather than "some"
So while it's a 'strong market' in the sense that 'unemployment is low', it could also be examined from another angle. Which is the rise of the gig economy giving people a lot of opportunities for work, but work that comes at a cost of being heavily exploited like with Instacart. Nor does it say anything about whether or not people are holding full time vs part time jobs or the stagnant wage issues.