There are plenty of "legacy" environmental organizations that view any form of construction, including construction of renewable energy, as worthy of being opposed. They aren't all interested in the bigger picture of advancing renewable energy to slow climate change.
Maybe, but this study is about specific, named organisations with documented personnel or financial ties to fossil fuel companies. Not sure how your comment is relevant to them
Even if you don't care about climate change, spending money to stop all development of wind energy technology and its deployment into the national energy mix is very very dumb. There are a lot of people who just hate certain things and make it their life mission to inflict damage onto it no matter what. It's not a rational thought process.