I don't know when in February you went to WDW but the crowds around Presidents' Week are third only to those around Easter and Christmas/New Years. For better or worse, it's the calendar we've been stuck with for the past decade or so...
I think we're just seeing the beginning of this. The introduction of dated tickets really was a 'soft open' - more of a testing of Disney's systems than of what tiered pricing can do. DVC rooms are about twice as expensive in peak season over low - I could easily see the prices for prime weeks like Easter and Christmas skyrocket while low season rates remain steady (or even slightly decline w/4 day packages) to capture 'value' focused visitors.
We went 8-15 of February and the crowds was much worse than May or September. Talked to the front desk and they told me they were sold out (SSR)