League unfortunately bit more entrenched. But I guess size of population not the only factor. Look at Sri Lanka and it’s population size and decent number of rugby players (hence why part of rapid rugby plans before that competition killed).
But actually from memory rugby competition in png and they have played sevens exhibition games but I digress.
I know is a League heartland, in fact, is the only country where Rugby League is the most popular sport. But as the NRL is investing in Fiji, Samoa and Tonga who are Union heartland, World Rugby should invest in PNG as a reply. There's so much potential.
SRI is a different kind of genetics. People from PNG arr quite similar to Pacific Islanders in terms of size and physicality