I guess it just depends upon the reward your looking for. Falco's frame advantage isn't that great. Its usually hovers around a zero disadvantage. Plenty of characters can jab cancel mix-up off of you depending upon what you go into after a jab. If I get a laser, then Ftilt is almost guaranteed without the risk of being hit back somehow. But yeah, Falco's mix-up game is really the most important part of his design.
I'm just bias in what people can do these days. Anyone familiar with the Falco match-up should try SDI'ing his rapid jab if they can punish it. With hitlag and the how long the move lasts, people can react to rapid jab half way through and still get some reasonable SDI in. It lasts about twenty frames and hitstun of all four hits is another 20 frames. 2/3 second is plenty of time to react. The only good thing about it is that only certain characters can reliably punish it if you try shielding after it. If not, then even characters like snake can SDI up/towards and bair/uair you in punishment.