If you don't think that every team tried to shut down Pat's running game (and Slaton and Devine, etc.), then you are mistaken.
It was a very tough task to do that and required a lot of D-line and linebacker skill,speed, and discipline. If it was as simple as you made it sound in the part that I bolded, WVU wouldn't have won many games at all during Pat's tenure. After USF beat WVU in 2006, everyone knew HOW to stop the WVU offense, but not every team COULD pull it off. Teams like Cincy, Pitt, and USF were the only teams with the athleticism and skill in their front 7 to make it happen. No matter what, Pat White had the athleticism to get him drafted. It didn't matter what the other defenses planned for half the time, because they were simply outmatched. That's why Pat was special and why he was draft-worthy.
Pitt didn't really force Pat to be a pocket QB last year. He had 93 yards and a TD on ground. For the most part, though, Pitt (and USF) did do a great job to contain him (and the RBs) his last couple years. The Pitt game is definitely a good example of him struggling as a passer. Probably the best example there is.
I still don't think the Cincy game is a good example, though. He was the whole offense that game and brought them back from the dead. Part of the reason it looks like he struggled was because WVU didn't really abandon the run until the 4th quarter. WVU was down 20-7 entering the 4th quarter, and Pat attempted 21 passes in that quarter. He wasn't really asked to throw much until the score forced him too... and he was very effective. I know we disagree on this game, but my point is that Pat brought WVU back in that game because of his arm, and nothing else. I find it really hard to fault a guy who can drive his team through the air like that in the clutch. The #'s weren't the prettiest, but they weren't bad either.
A game that I can point to in Pat's defense was the bowl game against UNC last season where he was forced to pass and came through huge. They held him to 2.6 yards/carry (and the team as a whole to 2.9), much like he Cincy game, but Pat absolutely shredded their secondary (26/32 332 yds 3 TD 1 INT).
You're right about the 200+ yard games, he only went over 200 yards against the BE 3 times in his career. The game against Cincy, and the games against Pitt and Louisville his sophomore year... But you gotta remember this... Pat only threw over 20 times TWICE in his first 3 seasons with the most attempts being 25. And in most of those games I'd say WVU racked up around 250 rushing yards and won by double digits, so he never had to throw more. I don't see what that stat really says. He was never in an offense that allowed for a lot of passing yards. He did usually have 200-300 total yards though. I'd see your point if he was throwing 30 times a game and only getting 150 yards, but he was usually around 150-180 yards on like 20 passes. As it stands, I don't think your 200 yard stat discredits him as a passer.