Sounds like they are trying to be polite and are tired of defending their product with people who do nothing but bash it. I can't imagine how frustrating it must be to constantly be crapped on by your customer base. No matter what Blizz says they are wrong. If they had said the total opposite of that there would be another thread out there making a different point. It is never ending.
All he said was something any normal person would do, without having to be told to do so. Don't like it....take a break. Not sure if you want to invest in the expansion? Read reviews. What's wrong with that exactly?