Thank you for your further interest.
You stated :
"By the way, the relief is regarded by Egyptologists to be Graeco-Roman and so it is not older than the soot damaged ceiling. What gave you the idea it was?"
I never said that the relief is older than the temple. The relief is either contemporaneous with, or post, the construction of the temple. Therefore, the soot has probably been gathering on the walls and ceiling since Day 1.
What I did say was, that the idea or concept predated the temple which was a rebuild. Someone with knowledge of a previous event described it to the carver who proceeded to depict this event in 3D. Just when did this event occur? As the Temple of Hat Hor is on a site which is most probably pre Dynastic, this depiction could well be of an event far back in prehistory and could even be prediluvial.
You also stated :
"And your thoughts on the complete absence of any physical archaeological evidence to corroborate your notion?"
Firstly, if you care to consider the size of the Djed Pillar as posted and the fact that ropes were required to raise it, you may come to the conclusion that this pillar is of some considerable size. So, what would have been its use?
Secondly, if you care to consider that the immense excavation and sockets at Zawyet el Aryan have never been adequately explained (Unlike the Old Antiquarians, I do not consider that the socket hole is a round sarcophagus), there is archaeological context for the positioning of a Djed Pillar in that edifice. But, if it doesn't fit into the tomb theory, then it has to be ignored or ridiculed.
You may also wish to consider that the "pyramid" of Djedefre at Abu Roash was never a pyramid just as the "Unfinished Pyramid" at Zawyet el Aryan was never a pyramid, and that Abu Roash also has similar excavations to Zawyet el Aryan. And, just coincidentally, that the name of Djedefre has a significance which the Old Antiquarians have also missed by attempting to pigeonhole him into their Giza scenario.
You may also wish to consider the following image and muse upon the position of the Giza Pyramids with relation to the suspected Djed Pillar sites and question, whether or not, the Pyramids are simply tombs.