Funny article, but I wouldn't be worried due to flaws of the study:
Only concerned with 'bonage' time, not foreplay (a concern of younger people);
Based off of about '10,000' (self admitted small sample size) of early adapters (younger people, mostly male);
When I was younger, I was a 3 min Man.... 3-4 times an hour... but multiple sessions not listed in that article either. Now I'm basically one and done, but it's a longer one.  

Most importantly, no mention of partner (dis)satisfaction... the most important measure of a Man, right?

Other than money, there's a reason the ladies prefer men over 30. If the study asked 10,000 women.... that would have been better.

my 2 cents, ga_kosh