okay so you are basing your judgements on events from decades ago alot have changed a simple comparison between the egyptIan army capableties now and then would be enough to prove my point.
6th day war an absolute desastre but I don't think any army back then would have preformed alot better with no air defance or air force (the small egyptain airforce was the first target) in a desert warfare against one of the most advanced airforces simple the sky was raining napalm bombs.
1973 the unmatched victory the egyptains managed to trick the mossad (considered by some the best Intelligence service ) destroying the most fortified defence line in the history of the human race
Bar Lev Line - Wikipedia, the free encyclopedia
fighting an army with all the cutting edge equipments of that age. Not just that but an Instantaneous replacement of destroyed equipments by the US
Operation Nickel Grass - Wikipedia, the free encyclopedia
"Based on intelligence estimates at the commencement of hostilities, American leaders expected the tide of the war to quickly shift in Israel's favor, and that Arab armies would be completely defeated within 72 to 96 hours."
The reason egypt did not mount a counter attack although we were well able to.was Sadat gaving a direct order not to withdraw a single solider to the other side of the canal he explained that by saying "israel I can fight but not the us" we had a plan to counter attack the israeli forces and believe me their position on the other side of the canal was not the best military wise.