Nintendo kept sticking with hardware that was difficult to develop on, capacity wise, and nintendo didnt want their content to mature with its audience. So devs were more than happy to switch to the new cd based system from sony.

I wonder how many devs started workin on projects when nintendo shitcanned their cd add on.

Square basically abandoned nintendo, and ill say squaresoft games of the nes and snes era are best examples of non nintendo ip ever produced for those systems, though im absolutely biased on that ill admit, that doesnt mean im not correct