Did you know the Athlon I (Windsor/Brisbane) has a similar bug, that was fixed with an application, misleadingly titled "Dual Core Optimizer"? Anyway, not on topic.
If they were doing it like the memory manufacturers, when they tell you on the sticker exactly what it is capable of (timings, voltage, frequency), then yes, by all means release a CPU identical to the X4 955 that is guaranteed to do better.
But if the only difference are the 4 letters "T", "W", "K" and "R" that somehow mean "Low leakage", and no actual accurate specifications are attached (like HT frequency/multi, voltage, stable frequency), then it means almost nothing. Because if you buy one and don't get better results then you'd get with a lower priced 955, will they refund you?
I know I'm a bit harsh on them, but being no.2 doesn't mean you're excused from rushing untested products to market. It also doesn't excuse you from making bold claims without truly backing them up.