Do you think they should have made grass good against fairy? Fairies tend to nourish forests and such since nature is their home, and grass tends to be good against things that it gets nourishment from, such as water and the earth. At the least, I think it would have made sense to give grass a resistance against fairy.

You know me too well.  I’m on board with anything that means Grass gets more advantages.  However… I think statements like “fairies tend to nourish forests” and “nature is their home” are kind of dependent on a very particular notion of what a “fairy” is, not unlike the idea that dragons should have leathery wings and breath fire.  Also, couldn’t this just as easily be spun in the opposite direction, giving Fairy Pokémon an advantage over Grass-types because they have power over plants?

I’ll probably do a whole entry on the Fairy type once my playthrough is done, so there will be more to be said here.