Last year there was an EasyJet div. to MAN.
That declared a 'mayday' and landed due to extended hold @BHX, overshoot due to BMI baby late leaving the runway.
When i looked there was 640kg total fuel. (A319).
Circumstances have an awful lot to do with low fuel diversions/landings so i suggest all facts are digested before a 'bunfight' begins........