Joysticks: Probably Still Drifty
Joy-Con joysticks use a potentiometer to read the voltage at a wiper that slides across a strip of resistive material. That material wears down over time, or plastic and dust can dirty the sensors.
Stick drift is a huge problem with other Switch models. One survey found that 40% of Switch owners had problems with their Joy-Cons drifting, and things didn’t get any better with the Lite or OLED editions. After a bunch of lawsuits, Nintendo’s president even admitted it and apologized, setting up a free repair program for customers in some parts of the world.
Did iwata ever say they were a bad idea? I thought it was that they had no idea how to make them secure but easy to remove, not because iwata said it was stupid.
He may not have said they were stupid exactly but he did tell the devs they were a flimsy choice for connecting the controllers
Edited to add a more direct source
https://www.videogameschronicle.com/news/nintendo-legend-iwata-once-rejected-switch-2s-magnetic-joy-cons-but-the-team-refused-to-give-up/
https://www.gamespot.com/articles/nintendo-switch-could-have-had-magnetic-joy-cons-like-switch-2/1100-6530577/
https://www.gamespot.com/articles/nintendo-switch-could-have-had-magnetic-joy-cons-like-switch-2/1100-6530577/