Ahem .... "It is important to wear it to express my faith so that other people will know that Jesus loves them."

(I didnt read it the first time round either
)
still a question of degree. wearing a flag is expressing that you're proud to be an American . . . I'm sure BA workers in America could do that.
if all she's doing is wearing a tiny cross (i saw a pic on bbc), it's not really an issue. If, however, she is letting people know that jesus loves them on BA's dime, then she should leave BA and work full-time for Jesus instead.
she wasn't necessarily being hypocritical, and BA seems to be losing the forest for the trees.