Exactly. Nintendo is sort of known for crazy overcommitment. They really commit to the bit, wherever the wackiness takes them. Two screens? All in. Funky controller for 3 handed people? Ship it.
Nunchucks? Say no more.
Moving their entire line to a single portable device was probably one of their safer bets.
Sony though, everything is very much a slight twiddle of the prior version, and as you say, the side hustles all end up in the bin - sometimes with very little notice.
Hardly inevitable. I'm broke af, the economy is collapsing, so not spending money on Nintendo is the easiest possible choice.
Literally not buying something you don't need is the easiest form of protest.