>>45247870They did do that
BUT
You're forgetting 2 key things:
It was on a much smaller scale (A handful of forms, and only a few Pokemon in USUM)
And the 3DS wasn't the best when it came to patches, The Switch is comparatively much easier to work with, so there's more wiggle room for the fuck ups at GF to finish the patch without setting their offices on fire
It's the difference between
>Shitty 240P handheld (with slowdowns) can't take a patch>HD Console that can run 360/PS3 games better than the OG consoles can't take a patchThe difference is a bit too big and at that point there would be really no excuse (especially if the games are pretty similar, much like every gen has always been very similar between al the games)
They'd be dragged through the coals again, and no one really wants a PR mess on their hands if they can help it