There are a number of pyramids in Egypt that the Egyptian government knows all about but they won’t let scientists study them. Now that more are known still won’t change the minds of the government.
I for one, am not interested. Europeans preserved what was worth preserving and studying before "egyptians" took over.
If present egyptians are what the ancients have degeretated to, it is best if the sands keep whatever is left.
They're afraid someone might accidentally turn on the Megabeeber
and the Aliens would return.