no, the linked table shows how python also returns the first non-falsey result of an a or b expression rather than just giving a boolean. it's useful for initialising optional reference args:
those sailing boat keels are lead-filled (at least at the bottom) and hydrodynamic so that the force of the running water pushes it back to center. it's a lot easier to capsize a boat like that when it's not moving.
...did you start watching the minute they uploaded and post this the minute you were done?