There's definitely some truth to fans simply repeating what the hear from talking heads. However, with the availability of All 22 film through the NFL, any fan that wants to pay for the privilege and take some time to study can learn a lot about the game. I'm sure the majority of average fans don't watch film but plenty of hardcore fans do so these days. Any of us that have that looked at film of the Ravens passing attack compared to, let's say more efficient passing games around the league, you can see the issues with Roman's designs.
While I haven't examined film, I personally never had a problem with Roman's passing plays. My problem was his abandoning the run game at the wrong times.