1. I only recently learned of the Cygnus - Giza correlation. It looks very good, but I don't believe that it necessarily means that Orion Correlation is wrong. Do you see room for both correlations?
2. My take is that the OCT is very reasonable hypothesis - theory based on three grounds: the air shafts, the Pyramid texts and the overall correlation of the three pyramids to the Belt of Orion, which is sufficiently close.
This is all that is needed, in my opinion, to make a compelling case for the OCT, independently of whatever problems may have been exposed regarding the back-dating to 10.5k BC and the original software you used.
Sorry if this has all been rehashed time and time again. But I'm wondering if you wish to comment on either or both of these points.