I don't fish, so I don't know about that aspect.
I have seen firsthand that the joystick option on twin Verado's do NOT bring a boat sideways to a dock when the opposing wind is blowing the vessel off. Ultimately, lines were thrown and the dock hands pulled the boat in hand over hand.
I have heard from a reliable Captain that his Marlin joystick-equipped with 300's has the same problem.
I listen to the gears banging and the lower units flexing and all kinds of tornadic maelstroms of water being generated by engines revving up in harbors...
You couldn't give me one of those joystick boats.
Again, maybe they're a plus for anglers, but it's my theory that you should learn how to drive a boat and not rely on joysticks.
A dose of basic seamanship and a bow thruster should get you over the finish line most every time.