The marketing was insane as usual. Nintendo performed excellent. Multiple front page reddit posts, multiple 10/10 reviews from big name outlets. Nintendo rivals Apple as the best company in marketing. Nintendo has done some sort of mass psychology that allows them to have sub 30fps with no complaints, I was born too early to see this reviewed in business schools, but we are starting to see a bit of the innerworkings…
Nintendo has been the gimped hardware in the marketplace for, what, 30+ years now? This is not surprising.
The Wii was the first time Nintendo explicitly entered the market with hardware knowingly less powerful than their competition, and that was... 2006? So like 17 years, not 30.
You could make a case that their handheld hardware was always "underpowered" compared to the competition, like the Game Gear and PSP, but the justification at those times was better battery life and pocket-ability. The market results seem to speak for themselves, though
A lot of western pundits (and major studio executives) have been expecting Nintendo to "go third party" like Sega ever since the Gamecube, and yet they're still around. They seem to know what they're doing.
Edit: bad at math