new targets, page-14

Having already completed the BFS, they already have a good handle on the project cost parameters, they could in theory pull the trigger on the project anytime, this would be a possibility if the POG goes a lot higher which would obviously improve the profitability of the project and allow them to attract the capital required to move forward.
I think their current plan is based on a gold price around these levels, therefor increasing the resource makes sense, as it will improve the financial metrics of the project, even if the gold price doesn't move higher in the coming years, as it will help them attract the finance required to move to production.
If your bullish on gold its hard not be bullish on AZM at this price level.