>>720003831 (OP)
ISO Standard for vidya controllers wasn't invented until the Xbox 360. The Gamecube was coming off the N64. The platformer was still the dominant genre of the market, a Mario game was the best selling game of the last three generations. You take it for granted but everything organized around twin stick shooter design is a fairly young feature of gaming. Nintendo was not expecting shooters to become so dominant in the market despite being the company that published Goldeneye and Perfect Dark. Hence the c-stick was more supposed to be light camera adjustment rather than something the player was expected to be constantly fiddling with, and they were expecting games to be using the face buttons extensively.
Most games before twin-stick shooters also frequently used Super Mario 64 camera control schemes, treating the camera like a diegetic element where pushing left moved the camera perspective right, which you would still see in Gamecube games, as opposed to now where "move right means move perspective right"
And thus, the Pro controllers are 360-layout and the Switch 2 has some grip buttons if you feel like it.
