I like the playoff format as it is now, but I didn't want to judge the new method until I saw how the results would work out. Now I have and it pretty much sucks. I went back five years and came up with this for the third WC spots:
8-8, 8-8
9-6-1, 8-7-1
9-7, 9-7
8-7-1, 9-7
8-8, 10-6
With one exception you're really just introducing a whole lot of mediocrity. And the truth is that there are always one or two sucky teams to make the cut anyway. This is definitely not an improvement, unless you're only interest is in greater TV revenue, and it might actually be counterproductive to that end.
Not really arguing with your conclusion (and I think we all know that the only or primary goal of this is more $$), but your numbers are not quite right. Assuming the top row is the 2019 season, the additional teams would have been Pittsburgh (8-8) and the Rams (9-7). And, assuming the fourth row is 2016, the two added teams would have been Tennessee and Tampa Bay (both at 9-7).
Over the past 10 seasons, the new format would have allowed in: five 10-6 teams; eight 9-7 teams; one 9-6-1 team, one 8-7-1 team; and five 8-8 teams. The most frequent beneficiary would have been the Steelers (thrice with an 8-8 record and once with a 9-6-1 record). The Titans and Bears would have made it twice each (with the Titans having 9-7 records both times and the Bears having a 10-6 record and an 8-8 record).
If you go back two more seasons, you'd get three more 9-7 teams and the only 11-5 team ever to miss the playoffs since the 12 team format began in 1990.
In 2019/20, the changed format would have looked like this (obviously, the 6 at 3 and 5 at 4 matchups don't change):
AFCBAL (bye)
PIT (7) at KC (2)
TEN (6) at NE (3)
BUF (5) at HOU (4)
NFCSF (bye)
LAR (7) at GB (2)
MIN (6) at NO (3)
SEA (5) at PHI (4)
The real losers in all of this are the #2 seeds who now have to play a third playoff game to reach the Super Bowl. Notably, this would have impacted three of the last four Super Bowl participants (KC this year and both teams last year) but only six of the last 20 participants (the three previously mentioned plus ATL in 2016, SF in 2012, and PIT in 2010).