The market will decide, either this will work or it won’t, moaning on an internet forum will make zero impact, only voting with your wallet will. If the new SH offering is so poor then BA will make no money from the route and connections and will pull the service, or they will make money and it will remain and perhaps, if demand dictates it, they will change it back to a LH route. The rest of the routes of that length are also SH, like Amman and Cairo and, before its demise Beirut, so it fits within the model that clearly works for BA.