I think that the BA people here who are rushing to say "why knock us?" should reflect a little. None of us who give the matter any thought are taking potshots because you work for Birdseed - we know that the majority of you are careful professionals.
The problem is that, in the minds of the press and public, BA is British civil aviation, so when stuff like this hits the fan we all get tarred with the same brush - sorry to mix metaphors.
I've been in this business a long time and the reality of short haul rostering is that a "legal" drink is seldom possible these days. It does make sense for careful professionals - see above. Orange juice really isn't that bad, but if you're feeling like living dangerously, try tomato juice with Worcester, well iced!