Here's my thoughts on how to balance Ganon.

Revamped Moveset:
N-Air: Replace with a Cape attack like Ganon had in OoT. Minor damage, but throws a big hitbox in front of Ganon that can reflect projectiles.
F-Air: Bring back the fist swing!
N-Special: Homing Projectile with the charge level dealing extra stun instead of more knock-back. Can be reflected by normal attacks that deal enough damage to send back at Ganon, but he can reflect it back with his cape and increases the charge of a non fully charged projectile.

Quality of Life Changes:
Grounded D-Special: The momentum of the kick should carry into the air instead of stopping short. Definitely should make the character feel more smooth to control.
Grounded S-Special: The input for the throw is way too tight and should be dramatically increased with the hit stun. Even if you mess up the timing, Ganon could loop it into itself and it feels like the opponent cannot get out. Should automatically throw the opponent forward if no input it pressed.
Sound Design: A few sound effects from OoT should make the character feel more lively for his float, N-Special, Grounded S-Special, and more. It would make the character feel more complete overall.