Some people seem very sensitive about having their precious CASA questioned - I thought Aussie were supposed to be thick skinned and laid-back
I doubt whether anyone is sensitive about having CASA questioned. A two minute scan of pprune would reveal that questioning CASA could be classified as the hobby for many contributors and the full-time occupation of some.
When it comes to Poms telling us that they know best, that's a different story. There's probably some historical perspective to that.