I fully agree with you Juan - this isn't just a case of BA versus Unite. It has huge implications for all UK employers who employ local employees, based locally on local terms and conditions.
I don't understand the logic of Betty in this instance who seems to be suggesting that these cabin crew are different from other employees becuase they work on UK registered aircraft. It seems a totally artificial boundary. I work for a French company and spend my work time split between France and the UK. Does that mean I could be entitled to French T &C which include better pension provision and higher holiday entitlement?
Call 100 - it isn't a case of Union bashing. It just doesn't make sense that you can be based in one country and claim T & C from the country that the company you work for is registered in.