That article is ragging on current NFL Passer Rating system (among other NFL stats)... not QBR as far as I can tell. The complaints in the article actually help justify QBR, from what I can tell. For instance, it complains about a QB helping his rating by throwing an 8 yard checkdown, when the team needs 12 to get a 1st down. QBR as I understand it, does not reward that checkdown... at least not much, because it didn't move the chains. As I understand it, QBR also weights "garbage time" stats lower, and gives higher weight to plays when the game is in question. To me, that is meaningful... and tells a real story about "real QBs" like Kyle Orton who can run up some stats when it doesn't matter, but don't win games. I am not advocating that QBR is perfect or couldn't be improved, but it seems like a step in the right direction compared to current Passer ratings, if we want to evaluate the actual effectiveness of QB performance.