Well, I suppose it was and I offer my sincerest to the fine lads and lasses that found it.
I seem to remember Josh saying that he wanted to find the start of it for definite to put a 'definite' on it.
But, yes, they have found what would appear to be the avenue. I believe it is, as do so many others, but until they piece another few parts of it together to get the path 100% nailed there will always be sceptics.