They must have been incredibly lucky to intersect 5g/t and 15g/t...

They must have been incredibly lucky to intersect 5g/t and 15g/t on that first hole!
Just because the follow up shallow drilling wasn't as high doesn't mean mars AT isn't significant.
It will take a few rounds of drilling and surveys to interpret the geology and revise the theory on what they think is there. It could be an epithermal deposit, the richer ore is shallow and found in veins.
Maybe by pure luck they hit a shallow vein on the first hole.

http://goldinvestingnews.com/13150/an-overview-of-epithermal-gold-deposits.html

My main concerns with AON are lack of working capital, the consolidation, poor shareholder communication, talking up what they have before proving it, HPX.

If Mars and the Fraser ranges are to be drilled, they will need more cash and/or a JV with another explorer.