The article otherwise looks like cheap corp. propaganda to convince the IT crowd to get back into open spaces. I guess megacaps will want to push for getting folks back so they can be controlled by middle managers as in the good ol' times. I'm not sure if that's going to work as per plan though.
Interestingly enough my mental health being out of the office has much improved over before office work. As a developer I thrive on long focus time and good written-down documents. I don't miss being interrupted all the time, being shot at with NERF guns, being a middle man between people having conversation over you, over lunch work debates, open office background noise, over the shoulder staring etc. etc. Not at all.