Gobekli Tepe forced a lot of rethinking.
Question: What do you think the odds are that the agriculture was a rediscovery after the Younger Dryas disruptions?
Expanding and contracting ice sheets grind away evidence. Just like they lower and raise sea levels, which tends to hide evidence.
I think you are on the right track.
And while we are doing the ‘odds’ bit - what are the chances that all the finds of so-called hunter gatherers where the hunters who kept the city dwellers in meat - those same city dwellers whose abodes are several hundred feet below sea level now and buried in thousands of years of mud, muck, and debris?
And the odds that our whole picture of what life was like 10s of thousands of years ago is totally wrong?
At Catal Huyuk, the original dig turned up no earlier development in terms of construction and such; the surmise is, given the age of the site, that the people who built it, the first generation to live there, had been displaced as the world sealevel rose as a consequence of the melting of the glaciers. Apparently they'd moved off what is now the submerged continental shelf.