How do you not attack his low rated right? You play a long ball middle right into his defensive strength aka his two CBS. Should likely have been a draw but you deserve to lose for ignoring your opponent's weaknesses. Also, your back line is pretty average. This is what happens when a manager is used to scoring a lot of goals and thinks his star rating guarantees him wins lol.
Following your logic a team with only DR and DL in defensive line should be attacked through the middle... and trust me, it did not work in at least 10 games I played vs. such formations... I tried 4-5 different formations in 2 games vs. this opponent, changing mentality, focus etc. and it did not work... First game was even worse, lost 4-1... Formation is not the reason of loss, but sudden form drop of my players in last 3 days... 12 different players got ratings 5 in last 4 games and half of them got it for the first time in careers...