That's so true. Sadly so. Ottercops Moss is a bit like that, the felling didn't crack that much stone, but the original planting back in the 70s did. The whole place is a right mess. At least Lurgan had you to go out tromping about to check the stuff that was exposed.
That panel that appeared at Achnabreck a couple of years back was the result of a tree falling over wasn't it? The one Brian went to see. How much stuff could be lying hiding under there? Bucketloads. If the trees never came down, it wouldn't be such a bad thing. Keeping the carvings nice and safe. But, well, you know, I guess eventually, at some point another ice age will come along and scour them away and no-one will have been any the wiser.