It’s the usual story with games from Nintendo’s golden age: they were so good, and most first-time players were so young and impressionable when they released, that nobody is willing to admit that what came later could be anywhere near as good.
For me, returning to Yoshi’s Island so many years after my teen playthroughs was shocking. I didn’t remember the game being so brutal, and downright unfair with some enemy placements and cheap shots. I honestly had to wonder how I managed to 100% it without savestates as a teen. Special level 5 had me pulling my hair out and swear like a sailor even with rewind and savestates, and special level 3 is close behind it. That final stretch of the Very Looooooong Cave is almost impossible without a true SNES D-pad, too, requiring extremely quick and precise inputs that modern controllers don’t really allow for.
It may be true that, as a whole, no other Yoshi game was ever that good. But New Island is much, much better than what its vitriolic reception will have you believe. And Woolly World, while not as tight, is a solid game too.
I briefly tried the DS game a long time ago and it didn’t click, but I always thought about giving it a second chance.