I was talking about 2016, during which the division was 33-31, collectively. That's pretty mediocre. Carolina finished last.
The only divisions that out performed it in 2016 were the AFC West - yep, I accept that division was stronger and interestingly was the NFC South's out of conference match up, the NFC East - yep, no argument there and the AFC East - which is a division that looks better than it is by that metric because of New England.
The NFC South is a strong, competitive, division. Just because it doesn't have a single dominant force in it people underestimate it. But since the 2002 realignment only one division has sent all 4 of its teams to the Superbowl. It is the NFC South. It was a strong division last year and sent a team to the Superbowl again.