I do no where you are getting your information but I think your understanding of
the cult of the Aten is badly distorted. Ikhenaton worshipped the Sun and
everyone else worshipped him. No real montheism. Also he lived c. 1100(?)BC
more or less about or slightly after Troy. Quite a bad King who failed to
respond to major foregn challenges. Aten cult pretty much died with him.
Certainly no signs that it survived him in Egypt since the people did not
abandon the old Major gods or local cults. He would have been about the time or
slighly after Maekenian period in Greece. Very unlikely that there was any
Atenist influence in Greece at all. Unless one identifies ATen with Apollo, no
major solar cult in Greece at all.