I agree with OP. This game needs jumping and swimming.

Maybe they can add climbing of certain parts of the terrain.

Reading that snippet with Yoshida was a bit eye-opening and somewhat mind boggling. To be perfectly honest, I'm really shocked to find that people actually don't want more immersion in a game? I, for one, am glad that Yoshida is going to go through with the decision to add jumping and possibly even swimming further down the line.