Ok, that I did not know off and I am probably wrong in thinking that there is no evidence of Nazareth in the 1st century.
Just one question to this excavation though. How do they know it is a 1st century city called Nazareth they excavating?
As far as I know, no known official record from that time mentions Nazareth. So is this a case of making the archeological find fit a myth, without much evidence of it being the actual Nazareth that Jesus supposedly grew up in that is being excavated?
I guess you'd have to ask the Archaeologists that question.
I know there was an early reference to Nazareth in Jewish writing as a place where Priestly families relocated after the destruction of Jerusalem and that in the fourth century the Byzantines built a big church there because they thought it was the Nazareth from the Bible. I don't know if they really knew that, or if they just picked a random Galilean village and decided it was the right spot.