Polian agrees with you and so do I for the most part. As a former OL I can be a little biased. I just want for one unit on our team to be dominant. We have a chance to get a difference maker at 7, so I'm back to WR or pass rusher.
I've been on record of wanting to trade Forte and draft another RB, but I don't there is one worthy of the 7 pick. I'll gladly take one in round 2 or 3.
My simple thought is that he is not a difference maker. There are 5 running backs in this year's draft that can run for more than Forte and they'll be cheaper and 9 years younger. Forte can help a lot of teams more than he can help us.