I seem to remember the issue being that Disney charges SOG for that privilege. I don't remember the figure thrown out there for the yearly cost, but I do remember taking that figure and dividing it by the number of rooms over 365 days, it would only have increased the overall cost of each room by a few dollars.......an amount many of us would be willing to pay.
In the past, I thought the argument was that SOG said they did not have enough people participating in EMH to make the overall cost worthwhile and that is why they removed the privilege. At least that is how I remember it, because it was 2006 and we were in the planning stages of our vacation that year. I was already making plans to switch reservations to a Disney hotel.