I am not sure if people understand just how remote Wollaston Lake is. If they got a road to there it is fairly recent. A lot of the reserves there are only served by ice(winter) roads, by boat or by plane.
I have worked in Northern Sask in the past as well as in Northern Alberta. You are pretty much in the NWT a far as terrain goes, except that NWT likely has denser population levels.
If I was in a similar situation I would do the same thing as he did.
I am glad he was found.