I disagree with you on this part - a wearable should be non-intrusive and if you look at the eco system Samsung created it does not work. You need the S5 for the GPS functionality - makes sense from a Samsung point of view, but not really for someone who runs 10km daily irrespective weather condition. Also remember that this is Samsung's 2nd attempt (they launched the first wearable in September last year which was an even worse failure). I agree that many things are software related and can easily be fixed, but Samsung is also known to very quickly abandon their old products.
I do think that his reviews are well done and he is very critical and looks at the devices as a marathon runner, cyclist and swimmer and not a casual user who wants to measure how many steps he has taken between bedroom and loo.
I see no issue with taking my S5 out for a run in a thunderstorm (although the only reason I would be running in a thunderstorm would be due to zombie apocalypse).
There currently are not all that many wearable GPS devices out there designed for sport so on that count it seems that he is writing a wish list as opposed to a review.
Yes, this is Samsung's 2n'd attempt. It is far superior to the beta model in many ways but let's not get into that just yet.
His review turned into a rant half way through when he could not figure out that as the S5 has all the functionality of the Gear fit (or 2 in my case) he would have to tell the phone where to get the data from.
I also found the 0 on S health irritating, so I pushed a couple of buttons and voilà, it is syncing from the watch.
I have no experience with the Fit's heart rate monitor but the one on my gear2 is pretty accurate (from readings during hiking and resting mode). All I can think is that he was wearing it like a bangle with the strap loose.
As the device is not designed purely for fitness nuts the fitness options are well, optional.