I'm actually surprised there haven't been more re-allocations. If the decisions were driven entirely based on wanting to even out demand, and not to also help Disney get more customers on-site during certain periods, I'd expect to see shifts that increased the cost of the most desirable locations/seasons until their demand was roughly on par with the rest of the units/seasons. For example, market demand would seem to justify higher points costs for BWV and BCV during F&W and (even) higher costs at all resorts during the holidays, 4th of July, and Easter (and lower costs at other times). The spike in demand in early December might also indicate its overly discounted --- Disney is motivated to get people into the park then, but in theory that should not be
DVC's primary concern.
Note that I'm not arguing in favor of the above, and in fact the first example would hurt me if my BWV purchase goes through, but in theory DVC should be able to select point costs that equalize demand at all times of the year. The shift of points from weekends to weekdays to compensate for the tendency at the time for DVC owners to book Sun-Thu stays to avoid the (overpriced) weekend nights is an example of this kind of demand-balancing adjustment.
That said, past history would seem to indicate that they are very slow to adjust point costs.