The majority of cancellations on the Isle of Man are not down to a wet runway. If the wind howls on the Isle of Man then it’s usually way out of limits. Of course there is the odd time it’s an issue but its rare.
the majority of cancellations by a mile are down to the below standard ILS. having operated there for a couple of winters if they had a cat II then there would have rarely been a divert. The ILS affects all operators regardless of type.
as for FLYBE vs stobart? Since FLYBE took over there have been a lot of tech / crewing issues plus frequency reductions especially on LPL