Lufthansa have their own feeder services, and the German workforce is well unionised, which could make integration difficult...
Fleet replacement will also be in their minds. The 145 and 135 are not bad aircraft, but the competition are running about in efficient turboprop and slightly larger more modern embraer models.
Dont forget Bmir have been running a fair few services for mainline, on a wet lease type basis, ie they were paid whether aircraft were full or empty, which also skews the accounts slightly.