Indeed a problem
There is also the stress factor, it is often 'easier' to read back everything (and not miss something), than to filter. You can get away with this in Oz airspace, but try that in some non-english speaking airspace and you'll trigger an avalanche of confusion (indonesia comes to mind).
Aviation radiotelephony is its own language (derived obviously from English), too many people do not understand this. Things need to be said in order, correctly, and outside of English-speaking countries minus the niceties...