sorry, but that survey is like going into a vegetarian restaurant & asking people if they eat meat...and then drawing the conclusion that a majority of people do not eat meat.
I analyze people's gait every. single. day. as part of my job. I get paid to do it. I have never seen anyone come in & walk ball of foot first without some obvious reason why (pain/muscle shortening, etc). And even then, people just tend to avoid heel strike, not go straight to the ball of their foot.
That guy who writes that blog is also a major in accounting. I have my doctorate in physical therapy. And honestly, who cares what I have...look at the many, many people who have spent their lives researching the biomechanics of gait....
it is all referenced around the heel being the initial contact point.
I tried youtubing some videos of tribes to see how they walk..it was A LOT harder than i thought to find vids of people wlaking, haha...so here is what I came up with so far:
Angola - Mucawana Tribes - YouTube (1:43)
The Tarahumara Indians - YouTube (0:53s there is CLEAR heel strike)
It was a bit difficult & it is clear it is somewhat inconsistent, but that is cause of the rocky terrain...that definitely affects the way you land. Also, even in the beginning of the 2nd video (shoes more walking), they seem to be doing a type of march, so they look to be landing midfoot over heel, but it is definitely not ball of foot first. And that 2nd video is of the indian tribe that inspired this whole barefoot running fad.
I have no issue with barefoot running/walking for the record.
If you can show me a source that has scientific/biomechanical data to support that toe-walking is better, I will *gladly* reconsider. I am always, always open to learning new things.