In 2004, the RAF's last Canberra accident killed 2 pilots whilst they were practising a wholly unnecessary training event - a night asymmetric touch-and-go. With no representative simulator available, it would be quite reasonable for asymmetric full stop landings and asymmetric go-arounds from above VCH, but an asymmetric touch-and-go (asymmetric touchdown, take-off again under symmetric thrust) seems like a risk too far in my view.
Appetite for risk was perhaps greater then, but in today's safety-conscious world, perhaps a thorough review of high risk training events would be appropriate?