No need to double down on making mistakes just because we've been making mistakes in free agency and the draft for years... including this year. If you do the right thing and the smart thing eventually you'll get ahead of the eight ball. It might cause problems this year with a hole here or there but I gotta be honest... I'm not expecting much out of this year.
"Bpa" doesn't really mean anything, imo. More to the point, everyone has their own definition for what it means, and that includes their subjective view of how important the position is. If you've got the same grade on a nickle corner as you have on a pass rusher and you've got a need at nickle corner you'd be a fool to take the corner no matter how many pass rushers you have. The value of the positions just isn't remotely equal.
The offensive line as a group is absolutely vital to the success of the team but the way the game is played now you need a group, not one or two elite players and then a bunch of scrubs. You're better off aiming for good to average on the OL and saving the elite players for the elite positions. Of course if you hit on everything you can take any strategy you want. But saving the elite picks for the elite positions is playing the percentages the smart way.