That's true for services like https://www.upwork.com, too, though. Upwork offers to match people with specific skills to people who need to hire them. Upwork helps track the work being done, and collects the clients' payments, passing them along to the workers minus a percentage.
I think providing a service to connect buyers and sellers should be able to be distinct from having employees.
It's a very fair point. I would add that since you seem to be able to be a driver for Uber/Lyft, etc. simultaneously, that would seem to suggest contractor as well.
I think providing a service to connect buyers and sellers should be able to be distinct from having employees.