As with many gear choices, i.e. panniers vs trailer, helmet vs none, rim vs disk brakes, etc, this is just another bike touring option, depending on ones preferences.
None of these choices are inherently right or wrong, good or bad. They're just different ways available to us to enjoy the activity of our choosing. Unfortunately, it seems that having options just lead to internet pundits pointing out "apparent flaws" in options they often haven't tried.
Personally, I like having so many options being developed for bike touring. Not that long ago, adapting backpacking and car camping gear was the norm.
Enjoy the ride,
Edit: Here's a video link
showing an incredible trip with this style of gear, not necessarily everyone's cup of tea!