When it comes to planning, I never minded planning dining reservations several months in advance. With the park hopper tickets, even if we decided to start the day somewhere else, getting to the park where we will eat is not hard.
But now, after my March trip, I will not spend the extra 300-400 on park hoppers ever again. That means now planning a dining reservation sucks, because that now locks us into a park in 180 days in advance. So therefore not only will I not buy park hoppers, I will not buy table service dining. I will then save money to just to quick service. Making a 180 day reservation and locking myself into one park is something I will not feel comfortable doing. That is why I am surprised Disney wants to eliminate park hoppers. If people stop buying them and stop buying table service dining, they will lose a lot of extra money. They are foolish to think they will get it back by keeping people in one park.