Just about every QB SU played against extended plays with his feet numerous times per game especially on 3rd downs. SU's OL can be much better for sure, but how many sacks this year could have been avoided with a better mobility or anticipation or faster decision making? I don't know, but after 2 years I'm pretty sure it's a factor.
I am not denying they extended plays. But, they had a much better pocket to throw from. I mean, look at the OL. Most teams have places for QB's to step up or avoid the rush. Syracuse gets pressure from RT, LG and up the middle. Usually pretty quick. There were some times where Nassib could have stepped up, but I don't think it was as often as you are referring to.
Don't get me wrong, a mobile QB with this OL would help. But, the OL is a pretty substantial problem in regards to pass blocking.
When I watch other teams, the first thing I notice is the quality of pocket and how Syracuse just hasn't done that in awhile.