Genetic Diversity?
Given that a major share of the CPUs out there are from one vendor, this is what you get. A hardware bug that permeates over several chips. Nice to see that AMD (minority report) doesn't have the problem.
Maybe Chipzilla Intel is too big and needs to be sliced and diced.
Thought experiment: What would Intel be if IBM had picked a different processor for its PC back in 1981 (Motorola 68000?)?