Well good for you then. In my opinion though, it screams cop out and cheapens both characters. I won't spend time on Vergil cause that's a vent for another thread but as for Nero, I remember my younger and more naive self playing DMC4 for the first time, having no idea that he was Vergil's son. Sure his DT phantom kinda reminded me of him but hearing Nero talking about when he got his arm after the first Agnus boss fight made me picture a completely different, and frankly imo much better reason for his power. I thought he had made some sort of "pact with the devil" to get the power he needed to better be able to protect his loved one Kyrie unbeknownst to the Order, which would also be why he was so afraid to show his arm in public.
Of course such a theory blew up when Sanctus spelled out loud that he had Sparda's blood in his veins, and there Capcom blew a golden opportunity to make Nero his own thing, unrelated to Sparda in any way and instead opted for the cheaper origin story. I'm not gonna lie, V might very much be in the same situation of having his potential as a character squandered like Nero did 10 years ago if they actually do opt for the son of Dante route. Granted, Dante and Lady does make a tiny bit more sense than Vergil and random woman, given that we already got history of awkward flirting in DMC3 and the little hints in the anime but I still don't like the idea and I want V to be his own thing, untied to Sparda's lineage. I want him to be the character Nero should have been.