pXRF, or handheld XRF, is really just a screening tool....

pXRF, or handheld XRF, is really just a screening tool. Typically you'd use it in the field as a quick validation of what you're logging versus where you'd expect your grade to be, and then maybe use that info to decide what intervals to send to the lab for proper assays. The only reason we're seeing companies reporting XRF data these days is to keep people on hotcopper entertained during the lab backlog delays, while the people who know what to look for wait for the proper assays (and now you're part of the latter group!).

If you look at the map of the drillholes, they were mostly single holes into targets - so these results suggest they're on the right track with their targetting. It would be extremely lucky to get massive mineralised hits on your first drillhole in a target.