I see your point because as we have seen with the Dolphins every new team is going to struggle to attract big names (unless you change the rules), nevertheless what you are arguing has less relevance to the region as opposed to how well the prospective club is run.
You could have the biggest junior nursery in the world but if you don’t have the money or good scouting then it doesn’t matter. So recruiting is just as important as anything and whilst Perth may struggle, I don’t think they would struggle any more than a second Kiwi side would and definitely less than a PNG side would. Also, I believe any new side is going to create more opportunities and with new opportunities, there are undiscovered or rejected players who will prosper. Like for instance, you or I are judging the Dolphins and any other side only by what we know but the game always throws up new players who come out of nowhere
It’s only my opinion but in essence you go for the bigger commercial market with the biggest potential,