Why is there no Top Gun SGA Fusion!?!? OR Top Gun/SGA CROSSOVER!?!?!? Because - check it. Maverick is an Air Force instructor when John would have been in the Air Force instruction type areas!!!! If he flew planes before helicopters - and I know nothing about any of this, keep that in mind - maybe he would have gone to TOP GUN! And then and then and then -- Iceman and Maverick and John! OR John IS Maverick and Rodney is the blonde chick with the cool car and the massive eyeglasses who tells Maverick he can't go below the hardeck! (And break a major rule of engangement!!!)
In conclusion: IT IS PERFECT.