Thanks for providing input on Marine assault tying it in PN capabilities. not sure if you can answer it for other folks on the forum, why would Egyptians go for Mistral amphibious assault vehicles and how their doctrine makes it a sense for them to have it?
Does LD75 or Wasp can sense with dedicated airarm along with destroyers for air cover?
Egypt's requirements are distinct, and very different from Pakistan's. Each platform, an asset or doctrine has to be in sync with your realities.
Egypt's primary concerns are Israel, Turkey, Libya, Sudan and Ethiopia.
Israel has a smaller landmass so if a conflict ever arose, Egypt would be in a position to use the Mistrals, because it's supply lines are short, whether it would be effective is another matter, theoretically it makes sense and it could be effective.
It has no direct conflict with Turkey and hasn't got a chance in hell of landing on Turkish soil, but in the Mediterranean sea, if there are Turkish platforms such as oil or gas wells etc, then it could use these for an effective assault.
It can use these to effectively support any forces from the sea in Libya, that's also where it's interests collide with Turkey, it could even use these to assist in the blockade of Libyan coastline.
The Mistral give an added option to land troops behind the front lines in Sudan, fighting on the border, plus a beach head slightly deeper on Sudanese soil.
Regarding Ethiopia, it has no border, as it is on the other side of Sudan, so combined with fighter jets, airborne troops and the Mistral, it gives Egypt an offensive capability, how effective it might be is another matter, but with those, its words carry weight so even without a war, with the mistral Egypt can threaten with an actual capability.
Pakistan is in a different situation altogether, with a larger enemy that has an effective navy, and much longer supply lines, put simply it makes no sense to establish a beachhead on Indian soil.
@Signalian has explained it beautifully, just take his thinking a step further and one can see it would be suicidal to make any such attempt.