Earlier quoted context omitted.
If so, then the "employment relationship" would last only as long as the job. When employment is specific to one job, it's a contracted job, which is a much better criterion than whatever France came up with. There is no expectation that either side will come back for more.
The French court doesn't buy your interpretation of "There is no expectation that either side will come back for more.", the mere existence of a vetting system and a rating system show Uber expected drivers to come back. The profession of driver isn't new and wasn't invented by Uber. Uber just found a way around local labour (and tax) laws and a European government, who's getting the downside of the tech company but…
It's irrelevant why a government would act, political or fiscal reasons are always part of it, and protectionism. This doesn't have bearing on whether it is making sense or being illogical.