It's never a waste to get conclusive evidence about something instead of just throwing it away on shortsighted conjecture. It strikes me as a bit naive that anyone thinks they can make definitive judgments the eventual future, bad or good, of the metagame of Brawl based on 6 weeks of it being out.
I just don't get why everyone is so impatient to have the final word be out about Brawl and need to have their conclusions in a neat little package already.
I think there's enough evidence showing that Brawl isn't as good (mostly hitstun and techchasing, it kind of makes up a lot of the game), although obviously there's more to be discovered. Yeah, we didn't figure out wavedashing until we saw Japanese videos (to my knowledge), but seeing that we have a much better idea of what to look for and we have WAY more people analyzing the game and trying to figure stuff out, I doubt Brawl will make any kind of drastic change.
EDIT: What I mean is, even though it's only been out 6 weeks (plus Japanese Brawl time), we've had better tools for finding new stuff so I'm sure enough that if there was a wavedash of Brawl, we'd have found it already. /end edit
There are new techniques discovered all the time, but they're pretty small, nothing game-changing. Like... you know how Wolf can forward B through some stages while hanging on the edge? It's pretty cool, but that doesn't change the metagame at all. It's somewhat analogous to Falco being able to edgehog (in Melee) with that turn-around walk-off thing, or by running, shining, turning around in the shine, and wavedashing backwards onto the edge. It's pretty cool, and definitely useful, but it doesn't change the way the game is played, which is pretty much what Brawl would need to be considered a decent competitive fighter.