Kind of the opposite of the alloy freewheel mechanism debacle...Nope.
CK is so picky about producing products that meets their high standards. I had a chat with them about XX1 at Downieville. They just said there design has to meet their standard.
Since they over engineer everything, including the fajitas they cook for us, it does not surprise me they are taking their time.
For me, it's better later and right, then first, crappy, and redesign.
Except that CK did this back in the day to compete with shimano and make something that was significantly lighter. Shimano stuck to steel and later titanium due to the hardness of the metals, and you'll notice how bad this is with the gears that are not part of the carrier, so it doesn't really matter what kind of cassette you are using (not to mention they were doing this long before alloy carrier cassettes were the standard high-end cassette). The "using a cheap cassette on an expensive hub" is a cop out. You need to go back and look at when these things came out.In CK (and all the other hub mfg's) defence, there's no accounting for people fitting the cheapest cassettes they can find to their $350 hub.