I beg to disagree with this publication, it's their view but it doesn't matter if you are working in the office or at home, all that matters is to get the job done and be gainfully employed as a citizen of a country. In that way, you will be able to live the good life you desire and will also be able to transact financially among other people in the country which is what encourages the economy.
No, no, that statistics is actually true and I'll explain why it is true. When you are at home, you are more relax than in your office. At home, we all have habits of drinking beer, watching TV, doing some random staff, home is a very different area where we were always relaxed since our birth. Also, if you are not alone at home, it's very hard to keep your attention on work because parents or siblings will sometimes call you and or attach you some duties. That's why a lot of people that I can confirm from my personal experience, buy a membership of special co-working office spaces to feel the atmosphere of the working environment, be more focused on their work and less destructed by others. Definitely, it doesn't apply to everyone but it's true for majority of people.
Though you have a point because of the distractions, and for sure you've experienced it, I've been working remotely for a couple of years right now, and I've met up and talked to tons of people that are working remotely, and even I've joined a group, but all of them say that they don't get distracted when it comes to working remotely, meaning they develop a focus so that even if those distractions are there, they still continue to work, and right now they will say they are not distracted to work, and also they have their own work space where they are working. From my personal experience, as I've worked in an office before, I am less productive in an office than here in my remote job because, by the end of the day, you'll need to report what you've done on a day, unlike in an office where there were no meetings; you've just casually gone out, and even if you haven't done some things, it doesn't matter. But again, that is what I've noticed.