Why yes, yes we can.
But, OK, let's answer it. The first answer is right in the fine article: Hip pockets lead to bad posture when sitting. They cause back pain.
The second answer is that if you dress for aesthetic instead of functional reasons, one of the very first concerns is silhouette. And if you care about that, you often care about the torso first, lines second, limbs third. (Note: Since it's an aesthetic judgment, it depends on your preferences)
Hip pockets ruin the look of the torso and lines from any angle except a pure frontal view. Worse, they ruin it for tight and loose fitting clothes (because for loose fit, hip pockets with anything of significant weight hangs awkwardly)
This pocket design addresses the first issue completely, and the second issue somewhat. (You'll still notice a change in the line especially on tight fit, but it's less noticeable because it's not affecting torso, and it's not at the end of limbs - which get more attention than the middle)
Maybe our list of maximes to follow should include "we must assume that people have a reason for what they do, and question somebody else's aesthetical judgment followed by an accusation that they're uninformed or unquestioning is not the best conversational gambit".