Romo is usually spot on in his commentary.  He and Nantz both seemed subpar, distracted and forgetful during the Super Bowl.  Not their best.

I did a quick google search in their newsfeed and I didn’t see much in the way of praise or criticism to be honest. I thought they were fine. Not ground shattering, but fine. I enjoyed it much more than a Joe Buck/Troy Aikman broadcast, I’ll tell you that much. 
 

I think the reality is that so far Romo and Nantz have gotten some truly terrible Super Bowls to call, so it’s likely more a reflection of very low excitement for the viewer as it drags on.