Telstra has been well paid for this problem of their own making, they have known about this for years and if they cared for their own employees and the public they would have fixed it well before the advent of the NBN. This has got nothing to do with the government, this is all about Telstra's attitude to work safety, they knew the state of their system, it was up to them to fix it.
11 billion was paid to them to use their infrastructure, an infrastructure that is dirty.
50 million to do a clean up, its just a drop in the bucket!
If it smells like a fish its a fish