There is so much wrong in this post.
1. Falco has had popularity prior to his Melee debut. In fact, it was what got in Melee in the first place over Wolf.
2. Falco is just a co-pilot? Try being 2nd in command for the team. The Spock to Fox's Kirk.
3. Krystal being the love interest makes her "important"? Well then, Candy Kong must mean a lot to the Donkey Kong series, since she's DK's love interest.
4. Listing a set of moves that FOX used with the staff doesn't help.
I can easily make a set that makes her cloned with or without the staff.
Krystal w/ Staff:
B: Firebolt. Fires just like a Blaster, just using the staff instead.
Side B: Krystal Enchantment. Like Fox Illusion, Krystal dashes forward. The only difference is that she does ice damage.
Up B: Rocket Boost. Like Fire Fox, but with no fire (so more like Fire Wolf/Wolf Shoot), and she moves staff-first.
Down B: Barrier. Just like Reflector, only with the staff's barrier power.
Krystal without Staff:
B: Blaster.
Side B: Krystal Enchantment. Same as before, but no ice damage.
Up B: Fire Vixen. Just like Fire Fox, but with Krystal instead.
Down B: Reflector.
And just for fun, let's revamp Falco a bit, shall we?
B: Blaster. Same as it was before, but he uses two Blasters instead and alternate shots, similar to his debut cutscene from the SSE.
Side B: Sniper Rifle. Using the Sniper Rifle he has in this image:
Falco aims with the Control Stick, then fires a fast, powerful shot by pressing the B button again. He then puts it away after shooting.
Up B: Homing Launcher Lift. Using the Homing Launcher he has in this image:
Falco shoots downwards, propelling himself into the air. The shot will lock on to people near it's line of fire.
Down B: Reflector. Same as before with the kicking.
And for more fun, let's give him a new Final Smash.
Sky Claw: Falco hops in his personal vehicle from Command, and can fly around and shoot with it.
5. Since you're going off on Specials only, then Wolf copies Fox to a "tee" aside from his Side B making up fly diagonally instead of straight.
That's how stupid your logic is.