How about they focus on both?

And for almost every consumer, a phone can already last a full day under any usage scenario. You would literally have to be using a modern flagship for 6-8 hours to burn it out in a day, and that doesn't mean 6 hours of talk, but a solid 6-8 hours of facebook, internet, etc. Few users ever hit this kind of use on a phone, which is why they've moved on to advertising 2+ day battery life. What the author is emphasizing so much has already been achieved by new flagships.

"Manufacturers need to stop advertising they can achieve a 2 day battery life when doing so requires you turn off features through power saving modes, live next to a cell tower, use your phone a little as possible or some combination of the 3"

Meh, my Z3 advertises "2 day battery" (xperia is where this buzzword phrase really started being pushed) and it doesn't require any of that. I easily get 2 days of battery (actually 3) with normal use. This guy needs some data and actual statistics from normal cell phone users to back up his article.