Nothing more permanent than a temporary fix.
>>They could have even gone to the F-15E for even longer legs.<<
The F-15E is an air superiority craft. The F/A-18 is the highest performance MRF in the world.
The F-35 was a great idea that died from “ a camel is a mouse made to government specs” syndrome.
The F-15E Strike Eagle is NOT an air superiority craft. It is a multirole ground strike fighter, just like the F/A-18.
You are thinking of the F-15C/D.
F-15E STRIKE Eagle (or Mud Hen) was brought into the fleet to replace the retiring F-111, back in the day. It’s really a bomber with some self-defense ability. Much heavier than the F-15C.
“The F-15E is an air superiority craft. The F/A-18 is the highest performance MRF in the world.”
Sorry, the E model is an attack/air superiority variant. And it blows the 18 away in every way. Not even close.