Actually, its a better result than either a prosecution under the Ancient Monuments Act OR a knuckle rapping by Ofcom.

For the Secretary of State to have written
"I agree that all concerned should be left in no doubt about their responsibilities in respect of our archaeological heritage. I have therefore asked English Heritage to write to ITV to help avoid a repetition of these events in the future
... is quite a big deal as any broadcater is going to see ancient sites as pretty dangerous territory from now on.

Maybe it can be widely publicised as The Cursuswalker Principle.
;)