Probably because I main Diddy, and think he has a lower technical ceiling than Fox/Falco/Wolf/Lucas. Maybe Lucas is more limited than I know, but that's why I'm asking.This shouldn't really fly with the logic you've been using for Diddy. Why does theorycrafting about high ceilings while ignoring the lack of a current presence at nationals only apply to your opinions on Lucas?
Also:
While there's a fair amount more Diddy advancement to go with banana techchasing and AGT, but there's a lot, and I mean a lot of anti-Diddy advancement to come. Diddy is unique in that the thing that makes him good can also be used by his opponents, and Diddy players tend to get a free pass because they are way more technical in banana play than their opponents are.
Characters like Mewtwo, Zelda, Marth, Zero Suit Samus, Peach, and others can use bananas way more effectively than Diddy can. There's a huge almost completely untapped anti-Diddy metagame.
Banana-less Diddy is more like a faster-falling shiek than anything- the bananas are where you can theorycraft high ceilings, but you can also theorycraft those high ceilings on to his opponents using the bananas.