The big factor is the stability of the coin. New coins are yet to be observed for days or weeks before multipools will decide to add them. They don't want to waste 1 day of mining because the coin fucked up.....
Thats why I said above...
Of course there is no telling that the coin would actually succeed... but thats the choice of the miner for connecting too that port...
It will not be wasted since its the choice of the miner himself if he wants too mine on that specific port
