but falco can cancel the reflector with a jab though
Not sure what you are saying this about? If it's about reflector's relative unsafety if someone baits it and jumps it, jab has like zero vertical range - if it does devs can remove that to make reflector more manageable.
Nerfs to Falco I would be okay with:
Reflector being cut to 1/2% damage output on the way out [that's over half of it gone] - even if it shuts down 10 different approaches and you eat a laser each time, that's like 40% - most characters can have zero-death's you twice by then. And if you shield the lasers/avoid them, or successfully avoid reflector even ONCE, you're in and can combo him, and he's rather comboable, even if he can try to mash jump with relative impunity.
Jab having less vertical range (upward, not downward), if it has enough to actually protect Falco from above after reflector, because that would be silly. It probably doesn't, but if this is what Sneak is talking about, it should be fixed.
Re-adding the "Personally, I prefer FIRE!" animation in - while I don't LIKE nerfing Falco's recovery very much, I A) think that him saying that is awesome, and B) think it would tone down his recovery in a reasonable way - the birdie can fly, but you can clip his wings if you can get down there to take him out [or he has to recover way down, which opens him up to edgehogging that will then allow one to gimp him this way or punish his on-stage landing because it's much easier to see coming]. This would mean Falco can't fire bird right next to the stage, go like a foot, and be on the ledge, which pretty much no one can do anything about unless another Falco spaces a dair perfectly [I've done it to Gold_TSG twice and had it doen to me by him once - only time I've ever been hit out of startup since they removed the extended animation.]
There might be more - I'd love suggestions before implementation to hear ideas and provide feedback, whether you listen to it or not. And I would guess owo feels the same.
If people thought uthrow was a problem, or camping with lasers is/was, slow lasers would shift them back to an approach tool that makes uthrow really bad, but I don't know if people want this (in my opinion it also indirectly, very slightly buffs bthrow, although if people know how to DI lasers then not really). I don't know if that's a buff or nerf though - it does give him much safer approaches against characters without reflectors.