The thing is, the question was "Is FERALHEART an educational GAME". And it's not. If you remove the players, there's nothing. Zilch. Zip. Nada.
Brushing up on your literacy skills, learning how to not be socially retarded, learning things about animal characters you didn't know - these are neat things that are educational in their own way, but they are not "part" of the base game. They come purely from socializing with the players.
The players are an integral part of the game of course, but as with any game, they are wildcards and the side-effects of interacting them is not really a "feature". It just happens to be a thing.
If you removed the players the educational value would be non-existant. So, in the most basic aspect of the question, Feralheart is 100% absolutely not an educational game.
An Educational game is created with the clear goal of making the player learn something. It's not just a thing that MIGHT happen, that's the whole goal. You can still learn nothing from FH if you don't talk to people or only talk to clueless ones.