A recent market survey has revealed that 0.09% of all HTTPS websites, which is around 4,100 sites, use the HTTP Public Key Pinning (HPKP) header to secure their domain-issued SSL/TLS certificates. Ref.: http://news.softpedia.com/news/only...es-are-using-certificate-pinning-502133.shtml
Since when did we abandon new security technologies because of early implementation issues. Maybe if this so called Industry Guru spent more time contributing in a positive way by helping to find solutions instead of just criticising and quitting he might be a little more deserving of that title.