I disagree with some of this.
For one thing, I don't really see how Superman, Wonder Woman and Cheetah should be up there. They should be by Shazam, if you ask me. It just makes those three feel more overrated.
I don't think Wonder Woman should be just as fast as the Cheetah. What makes Cheetah as an interesting adversary to Wonder Woman's is not just Wonder Woman being blessed by the Gods and Cheetah being cursed by the Gods, but the fact that she has advantages over Wonder Woman and vice-versa. Cheetah should be faster and more agile that should give Wonder Woman a disadvantage.
I would say it does make sense that Black Racer is behind Wally, Barry, and Thawne, since it's been proven they can escape from the Black Racer.