Below you'll find the link to some advanced stats for last season. It's only up to September, but absent some better data dump it's about as good as we'll get. Osorio is top decile for key passing percentage (passes that lead directly to a shot). Produced more key passes than players such as Pappa, Finlay, Diskerud, and Rowe which most would consider attack minded midfielders. This is the third highest total on the team behind Bradley and Giovinco, while noting he is hardly a focus of our attack. The story on him from the analytics guys has been similar. Lots of passes and the passes are forward looking too. From what I have seen the stats do not support your case of his passing not being incisive or aggressive. He's producing more important passes in a game than the average player even if there a lot of short passes in there as well that simply serve to keep possession.
http://www.americansocceranalysis.co...r-xgoals-2015/