The problem is you're arguing from a point of absolutes and false dichotomies.
I don't disagree with the idea that we're missing top-end players on the offense. That doesn't mean the defense isn't lacking those top-end players as well, regardless of who we've drafted thus far.
We could use good, impactful players everywhere on the roster. Save for RG, every spot is "good enough to win with," but we're lacking stars. I don't care where we get them and if a WR is picked at 12 or 30, I'm not going to be upset. But if you pass on what looks like getting the next LT (the original LT) or Reggie White just for a Greg Jennings, I'm going to question your judgement.
From there, it's positional value. Pass rushers of any kind are rarer that pretty much anything other than quarterbacks. It's why they are more likely to be drafted early. WRs tend to take a year to acclimate and are more common, so, they get drafted later. Right-side offensive linemen are typically valued lower than left-side players, so again, they're drafted later.
Under the old regime, I liked their approach to getting linemen: take guys who were college tackles that can't hack it at tackle in the pros, and turn them into guards. It lets you get mid to late round picks that are (typically) good pass protector technicians for low draft capital. It'll be interesting to if that continues or not. That'll depend in part on what they're looking for in lineman going forward. Maybe Spriggs slides over to guard and becomes the next Mike Wahl. You know, second-round college tackle that busted at LT and got slid over to LG? Though I'd be pretty bemused if all that draft capital ends up being a RG, which is typically the least-valuable offensive lineman, it really doesn't matter how it ends up, so long as we have a good player.
