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 actually see it all the time, it can be hard to focus at home with so many distractions or a person can even feel guilty because they are unable to manage their time, so it ends up overspilling into all sorts of crazy unproductive hours. I don't want to see someone working from 8am to 8pm with a whole bunch of gaps in between if I'm their manager, because that must end up crushing them slowly and very few people can work to these sort of boundaries. There is a small group of people that seem capable of adapting to a work at home environment and I guess with a nice enough home it can work out for the better. However it tends to be IT professionals rather than the wider population who maybe can adjust the easiest.