Environmental activists and other groups opposed to major construction projects in Germany have a tendency to latch on to even the most minor potential issue and complain and sue. The strategy, as far as I can infer it, is to delay the project and drive costs in the hope that it will have to be abandoned. It rarely works, but in combination with long and arduous processes for building permits, major construction projects can be held up in the planning phase for 10 to 20 years these days.

The Tesla factory is a huge exception, mostly because Tesla went ahead using temporary permits and took the risk that the final permits may be denied. The project has a lot of political support, which also helped the process along.