Backing into a slip isn't that difficult (with twin engines and PRACTICE), sport-fish captains do it all the time. The trick is keeping the bow under control while you maneuver the stern. On houseboats like mine, visibility would be an issue, too.
The reverse layout would have lots of advantages at anchor, as the kids could swim and fish and guests could visit in full view of the main cabin.
Maybe Amelia will chime in... I think their boat has a reverse layout.