A few thoughts,
I doubt there has been anything like the human traffic over the last 60,000 years there as there would have been in recent years with its growth in popularity.
It seems like that it is different from Ayres rock in that it isn't being closed for cultural reasons, it's due to people not taking care of it, similar to lots of other areas with the NPWS.
I haven't seen anyone disputing the claim that it is being trashed, equally, it's not a cemetery, people shouldn't be sticking plaques, spray painting RIP messages, etc on the rockfaces, it may be well-intentioned, but without permission, it's still just graffiti.
They seem to want to reopen it if it gets the facilities to cope with the numbers who are now visiting there, and people learn to respect it, going to a campsite/attraction where the bush is filled with bits of toilet paper is pretty disgusting, if I had to deal with this regularly I wouldn't be happy either.
For some reason, 4WDing and camping seems to attract it's fair share of ferals, I think anger directed towards the Elders would be better off directed towards those that don't take care of places.
From a PR perspective, it could be handled better, they would be better off mapping out what exactly is required by them to reopen it and keep it open, but that is just a side issue.
This was from only a few months ago
https://youtu.be/0r70bdZjfGc