The design doesn't match because the original order was planned to be bi-level, then the design on the coaches changed from the initial renderings. Why, I don't know, but the locomotive graphics were already made. It's essentially the same situation as the Midwest Changers vs. their Ventures, but at least those are
closer.
I do agree they should have at least mirrored the crescent shape from the locomotives to tie together the cabs and overall look some more, but here we are.
As for café cars, according to the official Facebook account (and another project manager in a Facebook group for what that is worth), they do plan to switch to full (or at least more of what we'd expect) café cars in the future.
See screenshot below:
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And this was the original rendering scheme for the California cars which would have aligned:
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Similarly the Midwest: the coaches are actually nearly the same, but the lines are higher up up the locomotives:
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