Many of the games that get ported are released for free at some point, the main porters usually try not to release a port before that happens. If you asked them to stop porting your game, I wouldnt be surprised if estrada777 did so. They generally seem to be fairly reasonable people who have more than enough to do.
Alternatively, I believe that some of them are willing to do the work and let the dev control the distribution, depends how the dev wants to handle it.
Either way, I don't really see that you lose a lot by having a word. Hope it works out for you.