as in many beautiful or wild areas, those who were brought up there tend to be less sentimental about changes. incomers, tourists and occasional / temporary visitors are often the ones who want to object. (not that that is necessarily a bad thing in itself)
This isn't about being less sentimental to change either - I honestly believe that if the proposed farm had guaranteed employment for islanders, then they would've been more in favour. I think it is that they really cannot see any local benefit or improvemnts in the infrastructure and economy of the island (other than the bloody great roads that will have to be built for the works traffic)and this is something the Western Isles are crying out for.
There are some interesting conversations on the visithebrides discussion board, which shows some of the more vocal/local opposition.