One thing to keep in mind was that L-Canceling wasn't exactly meant to be in Super Smash Bros to begin with. This was actually a glitch that just happened to work really well with the game. They took it out because it wasn't a part of the design that they wanted to leave there in the first place.
As for the speed... Brawl was as fast as Melee at one point in time but they slowed it down once Sonic was added to the Roster. They had to find someway to make him the fastest character in the game without actually getting you killed. At least that's what I read in developer interviews.
I wouldn't mind a more "definitive" version, but we're not exactly the ones who can define what is "definitive". We did not make that the game. What if our definition of "definitive" is not at all close to what Nintendo wanted the "definitive" Smash to be?
Being a gamer is about getting your hands on any damn game you can find and playing the hell out of it! It means experiencing the good, the bad and the ugly. It means playing the 360, the Wii and PS3. It's not about that Hardcore and Casual bullshit, it's about your passion for the medium itself!
