She's also 6-2 in the UFC because she fought terrible opponents, except for Karol Rosa, but even then, Rosa moved up from 135 to fight Dumont at 145 and Rosa didn't wake up until R3 where she had her best round and also knocked Dumont down with a 1-2 combo.
4 of Dumont's wins are against opponents who aren't in the UFC anymore. One of her other wins is against a person who moved up in weight to fight her, and her most recent win was against Chelsea Chandler, and we already know how good Chandler is at MMA.
In regard to other people saying Dumont will hold GDR against the cage and/or go for take downs, Dumont isn't the person who usually takes the fight near the cage, it's her opponents who attempt to clinch with her and she always reverses them against the cage. I noticed this when I re-watched her last fights against Chandler, Rosa, and Chiasson. If GDR doesn't attempt to clinch and instead uses her long range striking like she used to, then Dumont will likely oblige her and keep it in the center of the cage.