I can see your view, and it makes sense.
For what it's worth, my go-to source for pre-draft ratings is Walter Football, some don't care for that site, and that's cool, just wanted to give my source if anyone wonders "how the heck did he come up with that view" lol).
And reading up on OT and OG ratings, it seems that there's not really many, if any, players that just light up the board, players that have very few shortcomings and are thought to be "sure fire" HOFers (as much as you can tell pre-draft, of course). You have OTs that have short arms, OGs that don't have good hand placement, the player is from a small school, had problems with top defensive players, etc. etc. etc. So this year, yes, you can probably get one of the top-rated guys in the second round. And DT seems to be similar this year, of course if Carter hadn't had the street racing incident, he'd be the top-rated DT by far. But he did have the incident.
This year we'll see who the best teams are at drafting, imo, able to sort through the chaff and find the solid players....