Yeah that was a bit of a head scratcher to me as well- I consider myself to be quite "green" in my political views, and I could not really grasp why this was picked up as an issue to champion for environmental rights- and why it even became such a political football. Pipelines are far superior in just about every way, and cheaper to boot- there isn't even a cost component like there is against the argument for nuclear (another head scratching issue to me).

It's one thing to make a case that this is infringing on their property rights, and that may have been a true and valid concern, but for it to get coopted as an environmental cause, was just strange and made environmental advocacy as a whole look bad IMHO.