If you pay attention Google already does alter some images or makes the pixels so low you cannot see it. Many rural areas uses default imagery which is very crap so likely Hogwarts would only be a tiny dot you wonder what it is when trying to zoom in.
Now a street view tour of Hogwarts would be interesting if they let someone with one of the Google 360 degree backpack cameras to hike around the castle taking in the pictures when no students are there such as in the summer time.
Maybe do it two times where one visit is in the daytime and the other at night with all the lights on showing all the common rooms empty of kids and classrooms.