Trophy
Generally the worst times for an engine are when it's new and unproven and when it's old and worn-out. Nothing exceptional about a new engine wrapping its hand in although these days it's unusual not to say disappointing. When it goes bang like that I bet it called for new underwear all round.
In the days when our Queen had her own dedicated fleet of aircraft a newly arrived aircraft would be fitted with engines that had been run-in somewhere else and their mid-life spent flying the Royals before being sent to see out its days in a less important part of the Air Force.
Of course we need to understand the failure mode before we start chucking rocks.
G