Read this also today.
Don't airlines do this every holiday period though (Christmas, Easter,bank hols).
Here, Eastern cancel a whole bunch of flights over the Christmas/New Year period, as no business demand.
Likewise BA cancel some London schedules, same reason.
Perhaps the story (or non-story??) is giving credence to the impression of BMI being in some sort of "trouble", going by other posts I've read on the airline.