Sure, but he is advocating for a break so that he can work more and "waste" less time on "unproductive" breaks. He is promoting a productivity-enhancing break.
Alright, you go write a blog post about how actually doom scrolling is better for meditation, because it leaves you feeling unproductive.
Reminds me of this article https://aeon.co/essays/instrumentalisation-is-making-everyth...
Doing things with an ulterior motive most likely changes the experience of those things.
There's something inherently stressful in "doing relaxation".