I'm not sure about this, the NRL needs to be clear about which locations it would like expansion teams. There are only four which should be considered imo - perth, brisbane/seqld, adelaide and nz. No point inviting bids from anywhere such as Mackay or Tasmania. If its not the right location then its not a strong bid
The more bids there are the more competition between the bids it creates, and as a product of high competition excellence arises.
But that wasn't really the point anyway, the point was that the greater community is doing exactly what you are doing right there in that post, and predefining where the next expansion clubs would/should be down to just Perth, Brisbane, SEQ, Adelaide, and NZ (outside of our little bubble on forums like this they are taking it a step further and are literally only considering Perth and Brisbane), and that is a bad thing for two reason:
1. We've only seen a tiny selection of the bids when potentially there're plenty of other ones waiting to revel themselves, so for all we know there's a bid from e.g. Cairns, as unlikely as that may be, that blows everything out of the water. So it's a bit like picking chocolate as your favourite flavour of ice cream without having tried vanilla or strawberry.
2. It creates an expectation that the next expansion clubs will come from Perth, Brisbane, etc, when that isn't necessarily true, and breaking that expectation can have serious negative effects on the fan bases of those places that expected a team.
For example, if Perth doesn't get one of the licenses in the next phase of expansion, even if it was in the sports best interest to go that route, how do you think Perth Red will react? Now imagine that reaction on a large scale with the sports fan-base within an expansion market and the damage that could do to the sport.
Aside from all that, if you pre-select where the next expansion clubs will come from you are also making Eric Perez style situations functionally impossible, and as unlikely as it may be, but if some crazy businessman, or somebody like Robert Kraft, Shad Khan, or some other crazy rich multibillionaire, or whatever, somehow discovers RL and the NRL and decides to get involved, but only on their terms, then the sport needs to be in a position to capitalise on that, and if you've decided that for the time being at least that the only expansion you'll consider is expansion from Perth and/or Brisbane, and you've told everybody that, then you aren't in a position to capitalise.