Allow me to play armchair aerodynamacist.
Not enought wing area ( a la F-35, Thud, etc) and not enough Vertical tail.
Lead Sled in the making....
ROFL
You better save your amatuerish wannabe aerodynamicist to yourself.
Are you sure the fighter dont have sufficient wing area?
ONE PRIMARY DESIGN FEATURE OF THIS CANARD-LAYOUT FIGHTER IS THAT IT HAS WAY LARGER WING AREA COMPARING TO YOUR F-22.
Just deal with it.
LOL - But we'll make up for it with horsepower!