A plane is in a single fluid element until it hits the ground and that is always the high risk bit.  A boat operates between two fluid elements all the time unless it sinks - completely different situation to a plane.  The ground that planes operate on is purposely made as flat as possible to aid in a smooth transition from ground supported mode to air supported.  The time that the plane works between the two mediums is kept as short as possible because of the challenges involved at the interface.

I am probably one of a few people who has tried a rigid wing on a boat and I know it was not in any way a practical option for anything but ideal conditions.  I could not even tack it without getting into rhythmic rolling and that was in calm water.

The wing has inertia, both rotational and translation, so there is no way it can be aligned to wind all the time.  On a rolling platform think about the apparent wind up the span of the wing.  The angle changes up the wing so there is no way it can be aligned over its entire length.  Further the centre of pressure moves about on the wing depending on its angle of attack sop it can never be perfectly "balanced".

As far as I know the only boats that have had success with rigid wings sail on a single tack in calm water.There may be others that I am unaware of but I can appreciate why there are none being used on a cruising boat.  Even wings masts are a questionable option for cruising.

Ozone has found the best way to stay on the mooring or to anchor is to present the mast chord to the wind so the masts only have drag; no lift. They are always at an angle greater than their stall angle.  That drag is substantially higher than a round mast of equivalent strength.   

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