Creepy idea: maybe we didn't long enough when we rediscovered the Pyramids

If the Pyramids are just let's say the top of a structure that is possibly even bigger. We stopped digging because of the massive size of the pyramids themselves. Yet with the recent news of possible pillared structures underneath them, that would be shocking, because what buried the structure so deeply? A cataclysmic event? Or something we can't fathom? It would also push back the age of the pyramids even further, messing up our written history (which most of us know now has some fabrications)

This would also make sense to the idea that even ancient Egyptians found these pyramids and why Egyptian civilization advanced backwards as time went on dynasty wise, and would find common ground with a possible lost civilization. And would also show that modern Egyptian archaeologists are purposely deceiving the truth

Maybe we should check under the Mexican pyramids next?