What you are saying may be factual for you geographics, but my experiences has not been as clearly defined. I have seen the terms interchanged, not necessarily something that I agree with, it is an ardurous task of re-educating.
ASL is mentioned, albeit briefly. If her intent is with regard to English mediums, then I myself do not find it misleading.
Of course we disect this brief article, but untimately we will look for that which it does or does not fulfill for each of us. This is apparent in our exchange.
