Ok...I will play. You are basing your position on one guys article on the Chiefs website. He researched 10 years (2005-2014) and his criteria:
"I did not distinguish superstars from regular starters. The determination of a starter comes from whether the player started at least half of their career."
27 QB's were drafted in round 1 from 2005-2014. 63% would mean that 17 became starters for 1/2 their career.
Most of these guys had very poor careers, so I wouldn't use that criteria to judge. I am using franchise QB criteria because all QB's drafted in round one get their chance to start and many fail...they would make this dude's list.
2005 - Alex Smith, Jason Campbell, Aaron Rodgers
2006 - Vince Young, Matt Leinart, and Jay Cutler
2007 - Jamarcus Russell and Brady Quinn
2008 - Matt Ryan and Joe Flacco
2009 - Matt Stafford, Mark Sanchez, and Josh Freeman
2010 - Sam Bradford and Tim Tebow
2011 - Cam Newton, Jack Locker, Blaine Gabbert, Christian Ponder
2012 - Andrew Luck, Robert Griffen, Tannehill, Brandon Weeden
2013 - EJ Manual
2014 - Blake Bortles, Johnny Manziel, Teddy Bridgewater
1) You find 17 out of these 27 guys that were worth a #1 pick.
2) My argument has always been outside of the top 3-5 picks in round 1, the biggest bust potential and harm to your franchise is in round 1 from 6-32. In this case, only 4 QB's (Rodgers, Cutler, Tannehill, and Flacco) out of 21 (quick math) drafted after pick 5 (2005-2014) have been franchise QB's....19%. That is a big difference vs 63%.
Here is the link to draft history...you can re-search it yourself:
http://www.nfl.com/draft/history/fulldraft?type=position