The 'fans' don't have a consensus on what they want. A lot of them didn't want Nero to return, a lot of them wanted Dante to return as the main character without Nero. Theres been a lot of division on what the fans actually want. Some of them may have wanted a rebooted design for Nero yes.
We can pretend as much as we want, this new version of Nero looks very close to DmC Dante, but heres the thing, the new Nero actually looks very good; so we can't complain either way.
While it's true that everyone has different opinions the main problem I saw people expressing was the fact that he was a Dante clone. Now he's not. But i think it's a bit unfair to get mad that people like this game and Some of those same people don't like the reboot. While they are similar people aren't just blindly loving this because it's the original and hating the other because it's a reboot