Older, but it does point some things out.
While the NFL is (rightfully) known for having parity, that has not extended recently to the postseason. The past 5 Super Bowls have all been won by a 1 seed, and nine of the ten teams to play in the Super Bowl over that timespan have been 1 seeds.
2013: 1. Seahawks def. 1. Broncos
2014: 1. Patriots def. 1. Seahawks
2015: 1. Broncos def. 1. Panthers
2016: 1. Patriots def. 2. Falcons
2017: 1. Eagles def. 1. Patriots
If a 1 seed were to win this year, it would tie 1981-1986 for the longest streak of 1 seeds winning Super Bowls.
The dominance of the favorites extends beyond just reaching the Super Bowl, however. Over this timespan, just five teams (2013 49ers, 2014 Colts, 2016 Packers & Steelers, 2017 Jags) who played on Wild Card Weekend managed to just reach the conference championship game. They lost by an average of 18 points per game. By comparison, in the five years prior to this streak (2012-2008), 8 teams reached conference championships (2008 Cardinals, Eagles, & Ravens, 2009 Jets, 2010 Jets & Packers, 2011 Giants, 2012 Ravens) and they only lost by 0.25 points per game.
Additionally, 1 seeds went one and done six times between 2008-2012 (2008 Titans & Giants, 2010 Patriots & Falcons, 2011 Packers, 2012 Broncos) and posted an overall playoff record of 8-9, with five of those wins being contributed by 2009 Saints and Colts. By comparison, between 2013-2017, 1 seeds have gone an astonishing 23-5, with four of those losses coming against fellow 1 seeds (the lone exception was the 2016 Cowboys, who lost to Green Bay in the divisional round).
Home field advantage throughout the playoffs has (seemingly) become increasingly important over the past five years. Do you expect that trend to continue, or will the playoffs become a bit less predictable as time moves on?