"because you're just looking for one type of piece, instead of, like, going back and forth between others"
um? I don't go "back and forth between others" when I am using regular freeslice anyway. I still solve all the black edges and then all the yellow edges; I just don't solve the cross first, in order to make my life easier for the last 4 edges because of the way I solve them.
And this definitely isn't new anyway.