That's true. I have never met an aluminum bike build that can say our/my bikes have never cracked. That probably goes for any bike builder for that matter... well maybe not Grove Innovations... you'd be an artist to break one of those. Anyways, I digress.
Doug's 6061 bikes definitely had a much lower incident rate of cracking. His Easton 7000 series bikes, which is most of 92/93 had a much higher rate. Still not as high as the Answer made one, but up there with Yeti and the like. In total he made about 316 bikes, I have 10-12 cracked ones and have known of several others over the years with repaired cracks.
Anyways, the important thing about Doug and his bikes (similar to Pace) were the innovations he brought to bear on the bikes or maybe just applied in a fashion that stood out at the time. His bikes were in many ways a big departure to what was being made by other builders (geometry) and the industry in general and combined with things like suspension, wide rear stays and BB shells, wide front hubs created unforgettable bikes that still feel modern even today.