Nintendo's first party games, their top priority is to make games as fun as possible. Looking for a Mario game to be 'good' in the standards of what you consider to be good, is like hoping one day a Kirby game becomes soulslike because you felt they're too easy. The thing with Mario games is that, everyone is going to have a handful of Mario games that they like and they'll have some that didn't do it for them. I personally think Super Mario World is some of the best well-packaged Mario games around and I think Mario Teaches Typing is hot garbage.