User blog comment:Swiss Ninja/Cratship/@comment-113335-20100819221222/@comment-1024726-20100820235729

Technically, no. You can be a crat without being a sysop, though I'd say it would be extremely unlikely -- someone who is trusted with cratship will probably also be worthy of sysopship as well.

Either way, this is all due to human error (not just on Swiss's part) and the RfA's being vague. =P Which is why we need to make the procedures for promotion a little more specific.