This debate has surfaced annually.
Playoff expansion has been discussed at numerous NFL meetings and mentioned by commissioner Roger Goodell.
Teams like the 2013 Arizona Cardinals, who posted a 10-6 regular season regular, have been shut out of the playoffs due to a stacked division.
However, playoff expansion would disintegrate a portion of the late-season exhilaration felt by fanbases on the verge of the playoffs.
One additional Wild Card team would be viable, but expanded playoffs in general would throw off the current system.