The offensive line did have a few lapses in the game against Houston that they need to shore up for sure, but the backs and Taysom also are responsible for making good plays on blitzes. The running backs need to pick up the blitz when the offensive line cannot and Taysom needs to deliver accurate and quick throws since he will inevitably face pressure at some points during the game (not just hold onto the ball since that will lead to sacks). So although I agree that the line can and needs to improve, it also falls on the shoulders of others as well.
And to say that Virginia has the edge at offensive line is kind of ridiculous. Just look at the offensive stats of both teams - the offensive line definitely plays a huge part in those stats and our offense has been much better so far.