Well as already discussed airlines cannot foresee everything and disruption can and will occur. Fact.
Whether its business travel or not is irrelevant. I am sure Flybe will, as they already do, make every effort to operate to the best of their ability.
Not sure about the ungrateful gits - someone actually contacted Flybe to ask for a refund of their Euromanx ticket and when Flybe said no, because they don't have it the poor Flybe agent got a mouth full. An IOM resident.......you might not be ungrateful but I know that they are out there!