I have to say I agree with TwoxAcross. For one thing, sales don't mean much. There's pirating, buying used games, borrowing from friends. Too many things to make sales look lower than they might actually be.
As for saying the majority of the fanbase was simply against DmC because it's a bad game. Another person could just as easily saying they were against it because it was different, or because they're getting sick of new Devil May Cry games after 4. You could put any excuse on it and be wrong or right. And the fans that are trying to keep people from buying DmC are exhibiting one of the worst traits humans have: being controlling over something they have no right to try controlling. Look at the tyrants in history. They had the same trait.
All in all it's Capcom that makes the final decision and I'm sure they're more likely to look at constructive criticism rather than people complaining because they didn't ask for what was released. You didn't exactly ask to be alive, but you still are. Why not live and stop thinking you own the franchise when you don't. And that's for all fans that think they have so much influence over the fate of DmC/DMC.