It was addressed "over and over" when it comes to being a unmonitorable and unstoppable STALL. NOT an approach, NOT an match resetting tool, a STALL. THAT's what led to its banning; the inability to monitor it. They said NOTHING about it being broken in other aspects.
As it stands now, the SBR just doesn't want to look back on this. They'd rather their decision be final then re-review it. Its like the thing with items. Until 2004, they were allowed. But the KEY argument that lead to their banning was the random exploding crates and capsules. Now, although those are gone in Brawl, the argument for keeping items off is simply preference. They'd rather not rereview because they just prefer it that way.
While I don't mind the handling of the items discussion, it disgusts me that the SBR would handle IDC like this...