There's nothing inherently wrong with making building wind turbines harder. Maybe it's for safety reasons, or to protect the environment or workers rights or property rights or whatever. It's absolutely the government's job to make some activities more difficult when necessary.
Two details, lawsuits and safety:
The lawsuits filed for every single turbine project are a major pain. The anti-windmill crowd is a perfect example of German efficiency. They inject their opinions and objections from every reach of the country into every local community's discussion. Most of it is pseudoscience, like noise effects. I can hear the Autobahn from nearly every part of my town and its surrounding nature trails. Getting the legal roadblocks to green energy out of the way would be a victory for the climate. (From what I've witnessed, Germans are fairly resistant to change and very eager to protest: Stuttgart 21, Cyber Valley, Tesla, Berlin Airport, Querdenker, Fridays for Future)
If the German government wanted more regulation in the name of safety, there are easier pickings than the [likely completely unionized] wind turbine industry: ban traditional Maibaum raising, implement an Autobahn speed limit, limit fireworks during New Years Eve, change public policy and security stance toward football (soccer) matches, more aggressively surveil fringe movements.
Football: partially checked
surveillance of perceived 'fringes': checked
speed limit: in discussion for autobahn, rolled out in more and more parts of cities, so partially checked
wtf is/was cyber valley? silicon saxony?
So the overall this subthread is asking for context and then clarifying why it's needed.