This is blatantly unsupported by any evidence. If you want to run in most places people can easily run you have to wear shoes. There is no conclusive or even decent evidence that heel striking or non heel striking causes injuries. Barefoot running causes very different muscle activation patterns. It is much less efficient (biomechanically) requiring you to compensate very differently.
Find evidence that isn't anecdotes and is widely accepted and I will gladly change my mind. It is still an ongoing debate and the evidence in either direction is only moderate (in the direction of heel striking being fine, especially for folks running recreationally with a rather low load). Given the general lack of evidence it comes down to anecdotes and you can find those everywhere, people are crazy.
There is one study barefoot purists like to trot out that they think means barefoot/forefoot striking decreases injuries: https://runblogger.com/2012/02/vivobarefoots-barefoot-is-bes... -- the study was also sub-elite or elite collegiate athletes.
Other studies that I think are more relevant to a typical runner show very different results and the study is more credible: https://www.ncbi.nlm.nih.gov/pubmed/26126256
Find evidence that isn't anecdotes and is widely accepted and I will gladly change my mind. It is still an ongoing debate and the evidence in either direction is only moderate (in the direction of heel striking being fine, especially for folks running recreationally with a rather low load). Given the general lack of evidence it comes down to anecdotes and you can find those everywhere, people are crazy.