I don't know if this particular iteration of this is good, but I can see at least the start of a good idea here

I don't know exactly what's in their wing rub, but I'll bet it's probably along the lines of salt, pepper, chili powder of some kind (probably cayenne,) garlic & onion powder

Coffee has a fairly similar flavor profile to dark chocolate

Chocolate and chili peppers is a pretty classic combination, think along the lines of a Mexican hot chocolate

And salt also goes well with chocolate, and a tiny pinch of salt is a common hack to cut the bitterness of coffee.

The garlic/onion powder and any other herbs/spices in there are kind of the oddballs, they're definitely going to pull things more towards the savory end of the spectrum, but things like coffee-rubbed steaks are a thing, and sweet & savory combinations are a thing, so I'm not immediately horrified by that concept.

Again, don't know if this particular version is good, but I think someone somewhere out there could probably make a good version of this idea.

pureeing random shit and separating it out in a explody-spinny-thing lets you extract flavors without getting all the solids.

I'm not sure I would trust BWW with a giant lab grade centrifuge though. that seems like a recipe for world-ending consequences.