"gives Tarmac room to say "We ain't anywhere near the henges!"
They have said it ad nauseam - it's in every single statement they make, often with the accusation the campaign has conned people into thinking the monument isn't safe. There's little truth in the accusation since the campaign started ensuring terms like archaeological landscape were always used but evidently it needs emphasising even more.
Complex is good. I think George uses it sometimes but maybe it should be used constantly so that it rolls off the tongue of friend and foe.
Another point worth pursuing is that comparisons with other important "complexes" hasn't been pushed hard enough maybe. Comparison may be all EH has in the end if they're forced to define how far Thornboro is likely to stretch. It's a fruitful exercise: if you transpose Ladybridge to scale onto Avebury or Stonehenge it straddles Silbury or the Stonehenge Cursus for instance. In "familiar" terms, Ladybridge is very close in.
The damnable thing is that the Stonehenge and Avebury complexes have lots of apparently relatively blank areas, yet regarding them as not part of the whole is inconceivable. Equally damnable is that blankness tends to be a function of not having been fully investigated. When they are, stuff is discovered.