For the Aborigines, represented locally by the Anangu, the Uluru is holy and related to the Rainbow Serpent. They do not climb it and would like tourists to follow their example. But it is still allowed to climb the rock - a safety chain has been installed to prevent accidents. Strangely, you don't see many photographed views from above, so maybe it is not really worth it - the authors can't tell because they didn't try it.