This minor policy change does not surprise me. Considering that Tail number chasing and logging has been a surprisingly popular hobby for decades and since the internet, it's shared world wide. You'ld see folks with telephoto lenses and etc. outside of Air Force bases in England - for example - and there were lots of platforms in/out of those bases. This was during the Cold War. Attempting this within the Soviet Bloc would have gone very badly.
I have no problem keeping our military movements private. However, movements of politicians should be very public.
Sir John Honeybucket