I'm not surprised that it's only in Berlin: Berlin and Munich are the only german cities Uber operates in. In addition to that you need standing to sue, so neither you nor me as a customer can sue. The injunction here is the result of a case started by a taxi company owner in Berlin, so it applies to Berlin only. I would assume that the Munich cab companies were waiting for this case to go through and might follow suit.
It's important to note that this is _only_ a preliminary decision, the final court decision may be different. It's more of an indicator in which direction the court leans, but preliminary injunctions may be granted for reasons such as that continuing the service might create irreversible facts. (nb: I haven't read the injunction)
Neelie Kroes then spoke out against this ban: https://ec.europa.eu/commission_2010-2014/kroes/en/content/c...
Yes, you can profit when you find loopholes in regulations that your competitors can't take advantage of. Color me shocked.