I don't see it affecting the Amarna Period per se, or any other period. It does affect our perception of the founding of the dynastic period. It reveals that something extraordinary occurred prior to that time, namely the building of many unexplained and massive pyramids in Egypt.
Of course, a precise chronology is important for other reasons. Without it we don't know that the so-called Libyan 22nd Dynasty was actually in parallel with the so-called Egyptian 18th Dynasty. We otherwise miss out on the true complexity of that period. The same goes for other periods.
© Charles N. Pope, US Library of Congress. All rights reserved.