Intially that was true, it was meant for bright and lower light scenarios. Moreso in the age of the M Frame and Half Jacket arrays, when clear or HI Yellow were the complement to Black/Grey. With the release of the Style Switch, they moved more into 'mood' lenses, so you'd have a flashy lens and a more conservative one. I'd think that the sports models would be catering to the light transmissions more, but that's how things stand.
Vault models may just be getting rid of things, so the lens combos might not be ideal in the end.