Comment by ActionHank

It makes sense, but I struggle to see the value outside of whitelabel products that you may look to rebrand, but with the same UI.

Generally UI is built around a singular look and feel at a given point in time. Trends change, people change, ideas and features change.

You eventually end up with a rebranding and along with that some sort of UI refactoring.

This approach is incredibly valuable when building something that won't change drastically when you are changing those tokens.