It's the people who use the thruster in lieu of the rudder all the time even in open water that are the true bozos in my book.
*No disagreement here.
The longest time I've used the thruster was to make a 200-degree turn in the marina: about two four-second bursts.* When docking it might be three or four half-second bursts.* Managed without*the thruster*(sometimes clumsily) for several months when*it wasn't working.