And have you compared the functionalities of those moves? The Blasters have incredibly different applications because of Falco's causing flinching and Fox's not; Fox Illusion sends opponents upwards where Falco Phantasm sends them downwards; and their Reflectors, despite both reflecting, are very different in timing and usage as well.
And don't forget regular movesets: Falco's neutral combo, forward smash, up smash, forward air, down air, etc. are all vastly different as well.