It's not a "wrong." It's a calculated business decision to build on their western audience.
Just like moving to the 3DS made more sense from a sales perspective than the Vita.
I bought Nintendo consoles solely for MH. Now people will have to do the same for either a PC, PS4, or XB1.
I'm not talking about making MH World, I'm talking about not releasing an existing game that they've already done most of the localisation for.