I can't say that I've ever not understood what an FA was saying. I don't think that airlines are going to spend the money to do grammar training for their staff. Given that our country is run by someone who until quite recently had never left the country, has only a rudimentary grasp of the English language and routinely makes up his own words, I don't think that throwing stones at FA's for this is appropriate. It would be bad strategery...I think?
[Off-topic materiaL deleted]