I agree, Flacco had some big passes dropped. McGahee dropped a pass that should have been a first down, Mason mistimed a jump on that deep ball, then Mason dropped another pass (granted he got drilled). Then McClain dropped that pass near the goaline where he could have gotten a first down which would have setup a first and goal. In these types of games, you need those catches.
This team desparately needs a receiver over 6' who can stretch the field and go up and get balls. This offense will not be able to florish without one. And that is not the fault of Cam Cameron, Joe Flacco, or anyone else. A lack of a playmaking receiver really limits what you can do on offense.