I've been to several live shows in the last year at medium and big venues where the engineers seemed to use nothing but subs for the bass. You couldn't hear any of the notes ... just a throbbing rumble. This didn't have anything to do with how these bands usually sound. It just seems like a bad habit with the sound people.
I asked a friend at one of these shows if this was a local thing (all these shows were in Philly). He's a recently retired touring musician. He said he's been hearing it in other cities. But I don't hear anyone else complaining about it. I find it incredibly disappointing.