2 senior EK pilots who both are excellent operators (know them personally). Not standing up for them here but, if the aircraft is telling you not to land at the current airfield, company procedures (and tech info) state that a diversion is the best possible consideration, fuel is not an issue and is paid for by the company.......then why not do what the company pays you to do, follow their rules! Do what you are paid to do and let the company worry about either the technical issues, company policy or otherwise.
The crew did what they were told (paid) to do to get paid their salary and that's exactly what good pilots would do, simple, straight forward, end of..
J