Well it's my understanding that most people in history have less evidence in favour of their existence than even Jesus. I'm sure many people far better versed than me on this topic can confirm or deny this.
I think it was GDon who said that there is too much evidence for Jesus, which made me laugh like a drain. But you get the idea - nobody worries about some pipsqueak mentioned cursorily in ancient writings, but because Jesus is a big deal, somehow the method is seen as inadequate, and has to change, become more scientific - or something.
So in a sense, people are no longer arguing about history as such, or historical method, but about something else, I suppose, maybe the sheer indignity of religion? It's a bit like John Cleese thrashing his car - we can thrash Jesus round the chops, by saying he doesn't exist! That'll larn him.