One final thought: IF this move were driven by a desire to sell more points, why not do it 2 years ago? Why not 5 years ago or 8 years ago? I believe that Dean has said that DVC has known a reallocation was needed as far back as 2001, but they held off doing it out of fear of member backlash. (That's also 2-3 years before Jim Lewis was appointed VP of DVC.)
Probably, because sales have been significanty reduced at the present time. Additional sales weren't an issue in the past few years with people spending money like there was no tomorrow. That has come to an abrupt end. New buyers (although fewer than DVD would like) will still purchase BLT and AKV if they have the money, and since they aren't aware of any of these issues. However, DVD probably hopes a sufficient number of current members do add-ons for the minimal number of points they need to continue their previous plans.