Can I just say: How does this tech help reverse aerial rushes and upsmashes? This "Faster alternative" is literally dashing, flicking back and jumping towards enemy using the initial dash, like I'm not sure that classifies as an alternative to RAR but actually IS what RAR is.
As for Upsmashes, you can already cancel your dash into an Upsmash into this game, why do you need to make it harder by inputting the opposite direction and upsmashing?
I also want to ask some of the others as to why they think this tech would be easier than wavedashing. Wavedashing can be done on 2 hands, you just press the jump key and hold diagonal+L (or R if you're weird like me), like you're just pressing 2 keys immediately after 1 key. Whereas for this pivot move, you have to not only do it on 1 finger, but how far you push the stick matters as well.