However, in my opinion it does not really matter whether Moses ever saw the burning bush on Mt. Sinai and received the Ten Commandments from God. What matters is whether the Ten Commandments, as we know them today, have intrinsic merit in the light of this new evidence.
The first four commandments read like verses from the Bhagavad Gita - God himself proclaiming that he is the one true God. The remaining 6 commandments are guidelines to a moral and honorable life :
|Honor your parents|
|You shall not murder|
|You shall not commit adultery|
|You shall not steal|
|You shall not bear false witness|
|You shall not covet your neighbor's wife|
|You shall not covet your neighbor's house|
If anything at all, the new evidence might question the first four commandments, but does not change or cannot argue with the the last six.
The point I am trying to make is that often archaeological findings question the legends, myths, stories and beliefs of ancient cultures. That is how normal science operates - however normal science cannot question the deep moral fabric that these cultures help create.