Last 4 posts obviously are or were "proper aviators". Diversion at CNR will almost certainly mean you land with or near Final Reserve Fuel.......what if the winds are wrong, Atc hold you up or someone else gets priority because of an earlier Mayday. Those figures seem to reflect crews just about getting it right.
Personally I would be more concerned about the Lan flight......but that wouldn't be interesting. If people think making a mayday call is bad form have a read about Cove Neck.
P.s. just to confirm I am not a RYR apologist.....I cannot stand their corporate mentality, but it's unfair to question crews who seem to have got it right.