You obviously have no real appreciation of OPSEC
Actually Trouters, I'm not sure you do! Aircraft details and timings should not be advertised when they are related to 'operational' events. The delivery of a brand new aircraft that has been widely advertised in a variety of media outlets has no more risk attached to it than any typical airshow weekend where the display timings are advertised well in advance. Similarly, it is probably safe to say that a Typhoon will be flying at Coningsby tomorrow. That is not restricted information and even less rocket science or OPSEC breaking.
In this case, how exactly do you percieve the safety of those on board was compromised by a bunch of spotters discussing the arrival time? Likewise, how does it impact on the job the crew were trying to do, i.e, deliver an aircraft from A to B?