Ya you are not a fan because your local lol of course you won't be. Same with the person who plans every meal 180 days out won't be happy with short time frames because of slackers.
The point of just a couple reservations is that there is a chance to get a reservation without taking much inventory out of prebooking. You still give the prebookers most everything, you give locals a chance to book random nights anytime, and you give resorts guests a dedicated small pool of reservations to pull from.
Also the restaurant is part of the resort and MFs pay for the ground around the restaurant (likely not the restaurant themselves). It's also something likely low risk, low cost to be able to give as a benefit either to
DVC or more likely just to resort guests in general as that last min reservation option to a select few.
Disney needs to decouple far in advance booking from resort specific food options.