rgbrock
With all due respect, the topic has become divergent design, a very important idea, one that was used by Boeing in its software developments, as well as AirBus.
It is especially pertinent to ETOPS, since Redundancy was relinquished for Safety critical system design.
Essentially, independently engineered solutions for the same spec. sheet.
It's not exactly spitting in the wind, though it seems like it is reliant on separate approaches to be immune from parallel and identical chain fault.
For example, if the pitots here were different makes, it is quite possible that what failed all three would possibly have failed only one, perhaps due to slight differences in thermal engineering, alloyed surfaces or finish techniques. It is cross applicable to 038 because the 777 has virtually identical plumbing architecture between powerplants, with exact hardware compliance, and of course identical Fuel. It isn't simple to explain, and subject to alot of Flaming, for that reason. What isn't understood irritates easily.
Will