The Ravens have had a lot of drives stall because of penalties. I see the Bills defense making them jumpy. They do have some very nice weapons, but so far haven't really been able to put it all together. Going to be hard to do against a Bills defense that has a very good attacking DL. If the Ravens are going to be as dominant as last year, they haven't really shown it yet. I don't think the Dallas game is much of a barometer.
As for that Ravens defense, they have blown leads multiple times this year and almost did against the Cowboys too. I just don't think they are on the same level as the Bills. No offense is clicking like ours and it's going to continue, because they are giving up too many big plays. They have a good DLine, but there are problems on the back end. They have given up more yards than any team in the NFL so far. Being good at stopping the run is good and all, but that isn't enough. They have given up 16 plays of 20+ yards, also last place.
There have been some who mentioned that this is a good barometer game to see where the Bills are and honestly, I'm not sure that's true. They look like a decent offense, scoring 20, 23 and 28 in three games. Defensively, not so much. This just looks like a game where the Bills continue to roll.