We asked for housekeeping to come before 1pm (we always do that) and they came sometime when we were in the parks each morning. This was over 8 days, some days we only did parks in the morning and we napped the kids nearly every day.
With this new policy, I wonder how many people are going to start requesting housekeeping for certain times. I can see this already slowing down an already slow process with people crisscrossing the resort for housekeeping appointments.
Every guidebook I have ever read says hit the parks early, get out of the midday sun and retreat back to your room for some down time and go back to the parks for dinner and late night. And that is exactly how we tour. When staying in DVC it really didn't matter much because some shorter trips we would get no or only 1 cleaning day. But on the trips where we stayed cash, I can't tell you how many times we arrived back to the room in the early afternoon and the room still wasn't completed.