I still strongly, strongly feel that they should be using a consistent patch for a month or two to see how the metagame establishes itself and what's actually good. Constantly updating the patch removes the need for innovation. If you dislike a matchup or feel your character's not good enough, you can complain about it to them for a good ten minutes and then get them buffed in the next one and that's counterproductive because the long-term effect is that there's no stability.
I don't want to put effort into a character, only to have them super nerfed a week later because I'm winning with them or because it's "too hard" to come up with an answer for them. That seems like a waste. Moreover, constant updates mean we see very little of what each character is actually capable of in comparison to one another. It took people 4 - 5 years to make Melee fluid, and about a year to find out the first few layers in Brawl. Considering the lower level of seriousness approaching Brawl+, the lower amount of people playing it competitively, and the general distaste towards it as a tournament event by many people (not necessarily us, but others), there is no way we can argue we know sh*t about this game after playing it for a few hours at home, or for a week amongst friends in a tournament for no money. Especially when there's only one supplier of the game.
tl;dr I think Brawl+ could eventually churn out a fun game at some point. Trouble is, I have a sneaking suspicion that at the rate we're going through patches, we're not going to recognize it or discover it when we see it.