When they started the UK service with 24+ year old aircraft, I did wonder if they were testing the water and taking a leaf out of Icelandair's book of leaving a/c on the ground longer or overnight to get best slot times and revenues, rather than fly intensive operations with quick turnaround times...
It seems they fell into the double-trap of high-intensity usage of old airframes. What could possibly go wrong there???
I guess the maxim is:
"If you're going to do it, do it properly!" A few years ago I wondered aloud if they'd start same European services with half a dozen shiny new 777s.
Painful (and entirely avoidable) lesson learned.