Given the choice to live in luxury on Voyager or live hand to mouth while roughing it on an unknown planet, I'd think they'd choose comfort instead. Besides, the Maquis wanted to get back to the AQ to continue the fight. How could you stay in the DQ knowing you're family back in the AQ are still being brutalized by the Cardassians? Wouldn't you feel guilt?
Okay, I can see returning to continue the fight, but they were also pioneers and I cannot imagine they were all living a life of luxury before so getting a chance to start over in another colony that was more established and without an existing war might have appealed to someone amongst them.
I'm not saying there would be a mass exodus, I just don't find it credible that not one would choose to stay behind. They couldn't all have had family back home, surely?