True, but you can easily have the exclusion zone that's bigger than the border of the park. Of course every mile you extend the exclusion zone outside the park border makes fracking inside the park border (which is what is actually still happening) less economically viable. Intuitively, there has to be a compromise point in that equation. However it's unlikely the compromise point is zero.
Lev, I appreciate your experience (and I have no problem with fracking where there can be shown to be little environmental consequence) but it's not just about pollution at the dig site itself. Everything we build has an environmental footprint beyond the land it actually takes up. Extra infrastructure requirements, noise and light pollution etc. I don't honestly know if this will be an issue, but I don't think we can assume it won't be.
Jon