As a human to human, I won't talk on your opinions, unless they are declared using false evidence.
I can see 3 of these points and understand, maybe disagree, but understand. I'll leave those.
Point number 2 however is the one I think is based on false evidence. Or actually, NO evidence whatsoever. It is shown in the video and has been tested that this has uses, and has spacing options, can get you out of situations we used to not be able to do much in, while those are situational, they still count, just not that much.
People are still messing with this to find a use, who's to say they won't find something great?
Another thing, the whole confidence part is completely biased. It can improve people's game. Can. It's not a guarantee, but learning something that has uses and knowing of those uses is important imo. I personally will not be implementing/practicing this tech until more uses are found, but that's my choice based on my opinion on it.
People won't just jump in a tournament with little instruction thinking they can now do this consistently. It would take practice, then confidence to fuel them. The confidence comes from the consistency, ya know? At first when I started playing PM, I was just learning how to wavedash (I'm not a long time comp player, however, I've played smash all my life) and I didn't implement it into my game until I knew I could do it at least semi-consistently. This game's speed, yes, is like brawl to some, but it also makes tons of improvements over Brawl. It IS quicker, and to a lot, is a perfect marker between melee's overwhelming depth and brawl's speed.
note: to clarify, that last sentence was pertaining that it's a good marker BETWEEN the two, not that it has both necessarily (somewhat obvious)