Also... I remember Lass Diarra having a really good game against Barcelona in a similar way not that long ago. Few people wanted us to sign him.
And he made 16 passes with 69% accuracy. Thats not to say he wasnt brilliant, just some perspective so we arent going overboard. He made a lot of tackles, he took his goal well... But there would be very different demands at a top club than on Celtic. In a great defensive team performance players like this always look that much better, but if Celtic had 60% of the ball what would he have been like?
Individual passing stats are irrelevant on nights like that. He had nobody ahead of him to pass to. Almost every pass was a long ball for Miku or Samaras to chase down and hassle their cb's into mistakes (as Watt did with Mascherano) from a long, rather aimless ball.
Besides, he isn't a passing midfielder. He's a ball-winning midfielder, and a very good one.