This is quite interesting, I hadn't seen or heard about their intention to restrict like this, prior reading it tonight: "Please note also that using a self-driving Tesla for car sharing and ride hailing for friends and family is fine, but doing so for revenue purposes will only be permissible on the Tesla Network, details of which will be released next year."
I don't think our legal system should allow car manufacturers to impose these kinds of restrictions on cars fully owned by their operators. If I have the title on my vehicle, I should be able to use it in any legal capacity. This restriction is an attack on the fundamental ideas of ownership and property.
Assuming Tesla eventually "catches" someone using a Tesla for ride sharing profit outside of their network they could remotely disable the car, at which point they will surely be sued and the courts will decide.
And they will very likely decide against Tesla, IMO. The immediate reaction to this statement is bound to cause people who work purely in the software realm to protest, but to most courts software is still a very nebulous thing. Disabling someone's car (after selling it to them outright) because they did something with it that you didn't like is EASY to understand, anathema to the entire history of car ownership and I really don't think it'll fly.