I don't know if there's usage that I don't know of and requires the Geofence page to be at hand quickly? It seems to me something that we set once and forget. In fact I already changed my geolocation inadvertently thinking that I shall have to "apply change" before it takes effect.
I plan on installing the app on other family members phones and I'd prefer to not have to teach them all "this is the don't touch page".