Sora really only needs bsb to be decent. With his tri element legend dive built in, his USB makes him amazing.
As for the memory crystals, you could look at it two ways: one is that they're going through the effort to tag KH with its own realm designation instead of beyond like other JP collabs - which means they have at least some tentative plans to use the designation again.
The second way to view it is they are cutting the characters short, giving everything away once (especially since Sora has so much) that if you whale, Sora is future proof enough to not need updates.
We don't get foresight here, which is the real issue
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