I just opened my 3DS to double check to make sure my facts are right.
In MH4U they have the Wycoon/Wyporium where you can spend your points to acquire items by multiplying the items you want. (up to 3 carts/slots)
Here's a screenshot found online.

Now in Monster Hunter Online. (chinese game, i had to do like a 20 step thing just to play it)
There was an entrance to your 'room' on the edge of town where you can have your palicos, armor, storage box, and farm area to harvest things. The problem is you cant harvest infinitely in here. its limited per day (MHO was a chinese game that had micro transactions)

This is the closest image i could find on google.

But I do understand where you're coming from, I had to go to the same map and quitting it over and over until i found the item i wanted. Shove that into the Wyporium and multiply it to get enough materials for what i wanted.
But the key i think is that if you get 1 of the item you want you can produce it indefinitely even if it takes you doing a few missions to get it.

I have the game ill let you know how i think about the farming system. if it's worse or not for sure.