I like the general idea of putting more focus on good UX Engineers. But, this guy seems to think that making the back-end support a bunch of Ajax calls is easie

I like the general idea of putting more focus on good UX Engineers. But, this guy seems to think that making the back-end support a bunch of Ajax calls is easier than. In fact, you start needing more work to make it efficient since you have to break down everything into exactly what needs to be in that call with appropriate permissions etc.