At Capcom they are smart people, actually:
They gave 3DS "MH" exclusive (timed or whole gen, we don't know, but didn't anybody notice that just "MH" + version number was already a Ninty exclusive for 7th gen, while Sony, MS and other platforms received games that were actually titled like spin-offs? Then MH Freedom became the franchise best-seller, so Ninty can keep plain MH, if it wants, and pay for it too.