I believe it is a matter of public record that, prior to departure from JFK, the MS crew was instructed to call an 718 AC phone number upon arrival in Cairo to discuss a "possible pilot deviation" while the ground controller was directed to specifically complement the LH crew. When LH finally taxied out for their departure, the controller indicated "everyone will wait for you". While time may tell a different story and Egypt may be unwilling to accept that their crew was at fault, the "what happened" seems pretty clear even if the "why" is still subject to debate.