Instead of missing preventing you from getting S rank, make it be replaced with a bronze S. This is easy to disable too, as you could just replace Bronze S ranks with A ranks.
No actually here is fine for lazer features too. This forum is being read now (by me).
As for the actual proposal here, I'd have to see significant support for it. When the rank conversation was happening last year before "lazer pp" went live, I don't recall anyone suggesting a special rank for this particular edge case.