I have literally never heard anyone associated with the environmental movement say:

"This area is ecologically insensitive. I'm not too worried what you do here."

Until they define some map or scale of what "ecologically sensitive" means, I put zero weight on that statement. It's meaningless. They say it about everything because it is their job to do so.

I'm guessing you also haven't asked. All places are very much not the same degrees of sensitive and important.