Again, why try something new when the majority didn't ask for that to begin with, and was fine with things as they were? All the past games sold just fine. Capcom's only reason to reboot should have been because the majority didn't like the past games, and didn't spend money on the games.Why change something to begin with? To try something different. To attempt something new. They wanted to try some new things with an existing franchise, and they wanted to do so without affecting the franchise, so they created a completely new and different universe still tied to that DMC DNA that they could play with.
If people were going to throw their stupid b!tch fits even if they applied DmC's gameplay to the normal universe, then why bother affecting that universe at all? Why not leave it as is, and see what new things they can try.
It's actually pretty f#cking insane to me that people b!tched so much about DmC existing, when the alternatives were things that would have actively ruined/changed/affected the classic franchise. I mean, for f#ck's sake, they created a brand new universe they could do whatever with, essentially completely protecting the classic series. Everyone who doesn't like DmC should be grateful to Capcom for not even applying anything to classic series!
And no, it did not "entirely fail." Not at all. They set out to make different DMC that emphasized story presentation and had a more accessible gameplay style - they totally succeeded in that.
That's just factually not the case. All the past games sold well, way better than DmC at that. Furthermore, the fans took the time to buy the HD remakes just to show Capcom the error in their ways to do a reboot. We loved classic DMC, and we loved Classic Dante. Our money was and is still available to Capcom once they give up on this reboot, and get a better company (ideally Platinum games) to make DMC5.
It's quite simple really.