Difficult to say. Looking at the caa figures I think overall if you combine STN and SEN the figures are up, but last year WW did operate from BHD.
SEN approx 10 K pax per month not a bad figure, but I think the morning flight from SEN to BFS has lower LF, probably due to the fact of getting the train from London to SEN for the 7am flight. With 7.15 flight in the winter schedule it may improve