He ought to buy a lottery ticket, that's some tiger country out there. What would have been the result if he hadn't been able to get a phone signal from the hills he knew about?
Nothing said about carrying water or survival equipment (it can go below 0 deg C out there, at nights, at this time of year).
What would have been the result if he'd been injured badly enough to stop him from walking? I have to agree with Popgun - even though this bloke was obviously experienced in the W.A. bush, the whole episode could have easily been another aviation fatality, with a couple of less-favourable events during the forced landing.
It's time for him to be a little less casual about the chances of disaster striking in remote areas.