Like I said, the numbers game is an easy trap to fall into. I don't argue numbers because they never tell the whole story.
I have, however, seen for several years now a completely different story on the field. I saw a line that couldn't run block to save their lives, couldn't get any push in short yardage situations, has gone to the pro bowls on the back of Romo's escapability in the pocket, forced Garrett to turn to short passes and dump offs because he didn't trust them to buy time for downfield passes and so on.
Huff and Peterson/Amukamara addresses the majority of our secondary issues, in theory. That still doesn't make the secondary a bigger concern than the trenches in my book.
The trench guys make everyone look better, so if the secondary looks this bad with guys you can "live with", just imagine if the trench guys were even worse.