I'm actually not at all surprised by this. I highly rate BA cabin crew - granted, I fly mainly Club Europe with the occasional Club World thrown in - so no Dine on Demand issues for me! They are, in my experience, usually professional, friendly, work hard and really make for a great flight. Sure, you're going to have bad apples or people having a bad day here and there, but I almost never see it. The BA staff are generally some of the best in the sky.