Nah.
"Nah" what? Interesting link, thanks. The Sphinx, even according to your link, is way older than currently held "beliefs". Your link puts it at maybe 8000 BC. For some currently unknown reason, we are missing a huge part of our historical record. I don't have a link handy for 20,000 years old, however, I now have the link you provided (thanks again!) which demonstrates it is much older than it is currently attributed. Fascinating.