Barleywine
I tend to see hopes and fears as the same thing. I think this is what Amanda's saying, but I'm not sure. The thing that we fear is often the very thing we hope for... both hope and fear involve fascination with the object. So in a way, bringing the two into one concept turns it into something like 'What's on the querent's mind'.
(Which in another spread would be above the central card, as in 'on' the mind - not that I love to be literal with idiom, or anything - and position 9 is fairly "up high" in the CC so I find that satisfying!
Putting it another way: both hopes and fears are wishes. Wishes that a thing will or will not happen.
Anyway, I don't see a need to separate hopes and fears into two positions, or two cards.
Just a different model, one I learned from Eden Gray's books back in 1972 and have elaborated on ever since. Not a "need" just a variation. I don't believe Gray ever explained why she felt a "need to separate" hopes and fears into two positions, but I'm probably wrong and will have to go look. By the logic you've given, I see "fears" as better positioned low on the "staff" than in the more exalted spot up high. It's why I call the lower position "the deepest part of the Self" (rather than just the "Self" or "himself" per Waite), and the "psychic basement" where emotional "baggage" accumulates. By the same token, many people use Waite's "sign of the cross" model without really thinking too much about it. I try to get "under the hood" more.