I didn't say damage wasn't important, I was just expressing that the fact this stunt causes no damage wasn't the point, it was the fact it was legitimising other stunts which might cause damage.

What happened to the "leave only footprints" principle? I'd have thought NT would have wanted to keep to that.

I don't think monuments should be kept behind glass either and I agree with you that "if it's possible for people to interact with our heritage without damaging it, then that seems far healthier than removing them from public contact" But whether it's possible should be determined by one thing only - whether they will be damaged.