What matters is that he has shown that the location of the 3 gizamids has much in common with the orientation of the Belt Stars of Orion. Egyptology says the belt stars of Orion were not important in the era of Khufu.
Others have shown that the construction incorporates PI, PHI, etc. Egyptology tells us that the AE did not know of any such mathematical concepts.
Still others have shown that the construction incorporates a knowledge of precession. Egyptology tells us that the AE did not understand precession.
Astronomers (for example, Owen Gingerich) have said that humans were incapable of building a structure with the accuracy to true North prior to the birth Tycho Brahe. Yet, such a structure exists.
No less than Sir Issac Newton thought that the dimensions of the GP contained the information on the circumference of the Earth. Egyptologists tell us that the AE had no knowledge of the circumference of the Earth.
1) AE did not build gizamids, they were built by another civilization
2) AE did build but used plans and technology from another civilization
3) Egyptology is bunk -- AE knew precession, PI, PHI, etc. Orion was a big cheese.
4) All these observations are just coincidences (including the near perfect alignment of the GP to true North)
I've learned that no debate is possible with those who take 4 as the only possible conclusion.