Finningley Boy,
No, no agenda to discard anything with a traditional line to it for the sake of it. The armed forces should be a reflection of the population they claim to exist to serve and defend. I think that they, and the RAF in particular, are doing a pretty decent job of it so far, but there is much much more to be done.
As to there coming a point when there is no point, what on earth do you mean? The RAF does not exist purely to wear hats and silly clothes, nor does it exist to salute and do other silly traditional stuff that is now meaningless and archaic. It exists to deliver air power when and where the Govt decrees.
Imagine if you were devising the armed forces today from scratch. Would you devise a rule that means whenever you come across, or even see, some one of a higher rank you have to put your hand up to your head? I know some say that you are saluting the Queen and not the individual, but the nonsense of that for Junior Ranks is that they do not even salute the Queen, only officers do that. You couldn't make it up.
What was it someone once said about tradition? That it was the bitterness of older men.