If one is to believe that the SSR treehouse reallocation was part of some long-term plan, then one also has to believe that the treehouses were intentionally under-priced.
To put numbers to it, the original annual cost for a single treehouse (cost to book every night of the year) was about 15,000 points. Today it's closer to 17,500 points. If Disney had launched all 60 treehouses with the higher values, it would have given them 150,000 more points to sell. At just $100 per point, that would have been added revenues of $15 million.
Yes, some guides were known to use the "stay in a treehouse for the same cost as a 2 bedroom" marketing spiel. But if you believe DVC did this intentionally--and always planned to increase costs of the treehouses--fact is they left $15 million on the table by not starting with higher rates.