Agreed - but most don't automatically put the brakes on when you're taxying downwind.
Neither does the dHC1 if you use the correct technique; brace the rudder as for a tail slide.
Other aeroplanes have their own idiosycrases the pilot needs to know about.
And why would each need a seperate briefing? I could fly any standard Chipmunk in the world with no problems. I could taxy it, too! Indeed with only a handful of hours on 'our' Chippy, I went to Hawarden and flew G-BARS extensively when ours went in for some extended maintenance. Despite RS having an original metal prop and ours a Hoffman wooded one, it was no big deal for a then neophyte chippy pilot like me to climb out of one and go fly the other!
I've come across Cessna 150s with more handling differences (on the ground and in the air) aeroplane to aeroplane than I have among Chippys. Should that aeroplane demand a seperate briefing for each example?
I think you are just trying to wind me up!