I think his/her statement is pretty interesting. Because specifically it says "where memcached would do". Which to me is not bashing Redis but stating Memcach

I think his/her statement is pretty interesting. Because specifically it says "where memcached would do". Which to me is not bashing Redis but stating Memcached is better at being a key/value store. My guess as to the logic behind that statement is that memcached scales quite differently than Redis in that memcached is a very flat scaling, and is much easier to scale/configure than a properly setup Redis cluster. These advantages mean you go back to worrying about the problem at hand rather than deploying and managing the cluster.