This is absolutely on the mark. It is well understood that scaling Wordpress correctly requires a couple of core hacks (see this excellent comment: http://news.

This is absolutely on the mark. It is well understood that scaling Wordpress correctly requires a couple of core hacks (see this excellent comment: http://news.ycombinator.com/item?id=4693924 http://news.ycombinator.com/item?id=4693924). Why WPEngine does not incorporate these core hacks is beyond me.