I agree it's over hyped (I mean, tons of people play it in France even though it's not even out yet -.-) and that it kind of lacks features (a Pokémon game where we can't fight each other nor trade? Sounds like someone failed to read the specs before developing).
But I still think that's a better thing than Candy Crush, which is just yet another game, that could run on a calculator and asks for your money for some reason (kind of like Pokémon Picross on the 3DS, except that that one didn't make as much money as Candy Crush so that's why I speak about that instead). Pokémon Go is completely different, it's like (or "will be like", once they add features that are currently lacking) a Pokémon game but in real life, where you have Pokémons, not your trainer in your console but you. And you can go hunt Pokémons with friends instead of all being in the same room doing different stuff (which would be the case if playing the "real" Pokémon games).
So yeah, I think it does lack features and is over hyped for what it currently is, but it clearly doesn't lack potential.