Actually there are three versions of the 44 MkII, A, B and CC. The A has only one stateroom the B and CC both have two.
A lot of boats have only one stateroom, especially smaller aft cockpit
boats. One reason is there are a lot of boats that are sailed by a couple who don't want to devote space to sleeping quarters they don't want or need.
Another reason is much under 40' it's hard to fit more than one stateroom in a boat
and keep nice lines and reasonable size in the rest in the one stateroom, galley