If we are talking about last year you are correct the Colts were a way better team on Paper and head to head although we played them tough both times. I think the way the ratings work is how the teams improved. Adding Boldin to the mix shot the Ravens offense through the roof. I'm sure he will at least be a 92 overall and Ray Rice will fall somewhere in the range between 91-94 overall. LeRon McClain will most likely be around a 92 overall and Offensive Tackles Micheal Oher and Jared Gaither will both probably be around 86/87 overall. That already is a stellar offense without even talking about Todd Heap who will at least be an 85 overall, Ben Grubbs at about 91 overall (was 92 last season). Back up runner Willis McGahee at around 84/85 overall and I can see how this team is rated where it is and who knows where Flacco will be. He can be an 85 and just based on the other players the rating is easily warranted. Haven't even mentioned Derrick Mason, Donte Stallworth. Might not like it, but I think if anyone is objective about it they can see it based on individual ratings. That's not to say with everyone they have the Ravens will be that good this year. But right now EA has to go with what's on paper and on paper combined with how they rate players individually, it's pretty tough to not have the team up there.
Defensively it's easy. Lewis, Reed, Ngata are 90 + and Suggs is hovering around that area. Then with what they've added via the draft (Cody and Kindle and my favorite Arthur Jones - although he will be rated low) and FA's (Redding) it's easy to see how the team would be there based on individual player ratings. Too many 90 + players or players close to that range. And the depth is going to be ridiculous. By far the weakest area on the team will be CB, but with that front 7 it shouldn't be evident.
I think the thing people get bent out of shape with is they think all of these numbers will translate to dominant team.
Relax, it's Madden. The Raiders can be 61 overall and still be better than the 90 overall Ravens in Madden. That's just how Madden works. As one poster has asked, is this cosmetic? Every year up until now it has been and locomotion is going to have to have a huge effect for that to change.