If you are a government against renewable energy (for whatever reason) you should have enough ways to stop or slow down the process in general. Why are these specific projects so important that you are risking to get sued and lose?
The best I could come up with is that windfarms might clutter up radar images for low-level (cruise missile or similar) attacks. Is that a realistic concern?
Can anyone come up with a real reason that would make sense?
And, of course, if you say "baloney, in what possible way does this affect national security?", the administration can respond, "we can't tell you because of national security". So you can't definitively say that it's baloney, because they won't tell you what their alleged reasoning is.