Did Ron Moore Sneak Galactica 1980 Into Canon?

This came to me at four in the morning.

In Razor we saw classic cylons.

On Earth there were classic cylons.

In Galactica 1980 there was the first human looking Cylon.

We've heard rumors of the final scene of BSG being Six walking through Times Square.  Maybe it took 30 years for the Classic Cylons to nuke Earth.....

And it's Earth Year 4010 when Olmosadama shows up on Earth.

Why would there be two sets of Galacticas, colonies and people with similar names?

All this has happened before and will happen again.  We just forgot it happened in 1980.