Resort view studios are bookable at 11 months, but they can go fast---particularly during busier seasons. They are sometimes walked, but often you can fallow the walkers as they move on. For the summer, you often do not need to be there right at 8AM or even on the first day.
It probably has nothing to do with restrictions---at least, not yet---because so few resales exist. It is much more likely due to the fact that there are fewer of them, and they can be a significant difference in points without that drastic of a difference in view. I've got a trip booked for Springtime Surprise next year---I signed up for the run on a lark, and registration was about 8 1/2 months prior to the event. By that time, the resort studios were booked, and the preferred room required about 20% more points, give or take.