These researchers found that if you work from home you will be less efficient and productive than people who from their office. Can we say the same about freelance workers? Do you think that if workers are given the chance to "own" a task like freelancers they'll be more productive because it is just like being self-employed where you treat it as your business and not with the mindset of another man's business?
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.
Everybody can't be the CEO and top-ranking officials of a company and every sector of the economy can't demand your physical appearance. They only do that mostly to fulfil all righteousness, I see nothing wrong with online work, some companies even prefer it now to cut costs, yet the work goes well. What your work demands from you matters, even those who are working at home (freelancers) might be earning Forex for the country which is one of the benefits of exportation because they are exporting their knowledge/service to foreign people and get money in return which is usually domiciled in the USD.