Oh and whilst at it read the economist article and see what they feel about RR silence. I'm not convinced that I agree that RR should have been as silent as they have been but the aerospace industry appears satisfied.
RR need only satisfy their current customers, regulators, potential customers and the investors.
The investors need only seek out technical based opinions beyond this from independent experts.
Since such experts are not in evidence in this thread (name, title, bio) then the technical design-redesign opinions expressed here are only to impress the browsing reader.