Both runways in Dortmund have displaced thresholds reducing the LDA to 1700m. Jersey also see's regular A319/A320 service and has a runway length of 1703m again with no impact at all. To suggest that the runway in Bern is not long enough is just laughable. If you want to really hammer home the point, look at the runway in Santos Dumont Brazil - 1323m and currently inbound are B738's and 319's as well as the Embraer/Turboprops.