Fg Off Bloggs, it is a rare moment but I find myself agreeing with you!
It is indeed more convenient to do it in a flying suit, but it doesn't come round that often (although perhaps more often than it should given the numbers from some of the Squadrons who are away at any one time) and is, as incubus said, a ceremonial duty.
At least the rules requiring the OO to wear No 1s in the evening seem to have gone (unless inspecting defaulters etc etc before someone jumps down my throat)