From what I have read of Normandy lately, the Shermans did just fine. The Allied tank destroyers and Anti tank guns were more than sufficient to deal with the limited German armour threat that was never allowed to be fully realized.
This superiority (in terms of guns and artillery) allowed the Sherman tanks (in all variants) to be employed in full support of the infantry and they never let anyone down. In fact, the threat from massed Panzer regiments was so underwhelming that many tank destroyers were used almost exclusively during the war for infantry support in the form of long range artillery.
Sure a Ronson may have lit up every once in a while, but there was always another one to take its place right away. Normandy was lost through a battle of attrition that Germany had long since given up on and I can't wait to see how that plays out in the game... give us crap shermans, it doesn't matter to me as long as they are abundant