"Simple Simon" wrote" snip

actually what you wrote was:

So, for all practical purposes any sailor whether he uses
his motor or knot really does not need a sailing endorsement.
The USCG realizes this and that is why they place primary
emphasis on their licenses stating Master of Steam or Motor
Vessels while they toss in a sailing endorsement mostly to
fill a loophole that of pure sailing vessels.

its not a loophole for pure sailing vessels, its required when
operating inspected vessels with either sails or sail/aux