One disquieting aspect of the Quinlan affair is the way that the agenda was set by Sky Sports. I was at the match and saw nothing. Neither I expect did most people who watched on television until Sky started showing the incident repeatedly in slow motion. Cullen didn't complain after the match and neither did Leinster. However the amount of attention it got on Sky meant that a citing was inevitable. And so I expect is the suspension that will cost Quinlan his Lions place. Looking at the incident on YouTube I'd say that at best he can plead carelessness. He didn't gouge but he did grab Cullen roughly around the eye area - that'll be enough to condemn him.
The problem is that every rugby match contains many such incidents, some captured on TV, some not. Sky have it in their power to focus on one incident and ignore another - to suit the agenda of whoever controls these things. A smidgen of jingoism is enough to set such an agenda. And let's face it Sky are hardly famous for objectivity.