they all had good load factors
If their ops at BHX are anything to go by, high load factors alone are not enough for FR to keep a route going. It seems that a myriad of things can see FR terminate a route, most notably their relationship with the destination airport, yield (info which I am not party to, maybe other on this forum do have) and pax spend on board. BHX-OPO and BHX-BUD amongst others had average load factors between 85-90% and were canned, never to be seen again....if other airlines adopted this approach BHX (and probably BRS) would be left with many less routes than they have now