None of which probably appeal to folk wearing spotters' camouflage waiscoats covered in aircraft badges who tow their little aluminium stepladders around at air displays.....
Nonetheless, the cancellation could perhaps have been better promulgated? But how - Internet? Local radio??
Maybe a short pre-recorded message on a dedicated 'airshow news' phone number might be an idea next time? Make it 10p to call and get some additional income?