One of the things that surprised me in the Undercurrent story about the Philippine Siren losing an engine and (barely) managing to get back to port under sail and with one engine, was that the Captain had been on board for 9 years and had never steered the ship under sail before.
We attend a large local dive expo show every year and the Siren Fleet always has a large, attractive exhibit booth with lots of pictures of their beautiful boats under sail. It looks so romantic and lovely and I always assumed that being under sail was one of features of their trips - but apparently not!