Acra could still be a "company maker" DC described in this article last year...even with a 25% eventual interest for PIO.
https://thewest.com.au/business/finance/newmont-pegs-new-gold-territory-ng-ya-102918
Better to have 25% of a possibly large deposit proved up and mined with NST's expertise and resources ASAP imo...rather than years of raising funds for drilling and/or trying to cut a better deal with another major.
http://www.asx.com.au/asxpdf/20161114/pdf/43cvrfxwdzph97.pdf