No one said they have to drink it. I wonder if they even had to load or unload it? It seems to me that this is about making muslims a sharia governed enclave
As a former truck driver I can say if they didn't know they might have to haul alcohol they are either stupid or playing games to get protections carved out for them. I believe they are doing both. They are a general freight hauler which means if it fits it ships.
As long as they don't have to drink the alcohol, I don't see what's objectionable about it.