Eh, anyway, the "l-canceling my jump" thing has been beat to death, I think we all get it.
In any case, these arguments are dumb. Anyone who's played a substantial amount of Melee and can't understand why items aren't conducive to competitive play is just crazy to me. There are two main points here. First, people playing in the tourneys LIKE to play without items, so that's how they play. The reason they like to play this way is because they believe it promotes skill over luck, which I agree with, but that's neither here nor there. The bottom line is that that's how the tourneys are going to be played, and that you're getting upset over something you don't even participate in. Second, people playing in the tourneys are much better at this game than you realize, and know a LOT more about how the game and how items effect its flow than you realize.