Go take a look at the National League in baseball from last year. Both wild card teams came from the same division, and both of them had better records than the two other division winners. Nobody got up in arms or lost their mind over it.
Okay, I'm baaaaaack.
First. The big difference. MLB has three 5 team divisions (like football had for many years) as opposed to the four 4 team divisions in the FUFL. That alone will decrease the chance that a team with a worse record can get into the playoffs.
Second. The bigger difference. The example you gave showed that the two wildcards and three division winners had the top 5 best records in MLB. Nobody has a beef then.
Now you can go take a look at the history of the FUFL in the 4 team 4 division era. Never mind. I did it for you. This idiotic setup started in 2002. These are the results;
2002 thru 2007 - There were teams that needed to use tie breakers but no teams with a worse record made the playoffs during the first 6 years of the PEDton realignment.
2008 - The fun started. The 8-8 SD Chargers went to the playoffs while the 11-5 Pats stayed home. At least SD beat them that year.
2009 - There were only ties that needed to use tiebreakers.
2010 - One of my favorite seasons. Seattle goes 7-9 but wins the vaunted NFCW, while the 10-6 Giants and TB stay home with their fans. The Giants beat Seattle 41-7 and TB beat them 38-15 that year.
2011 - the 8-8 Broncos are in for winning the AFCW while the Titans are out at 9-7, even though one of those wins was vs the Broncos.
2012 - Another year off from the stupidity.
2013 - The 8-7-1 Packers get to go to the dance while the 10-6 Arizona team and it's fans stay home.
2014 - The 7-8-1 Panthers get a chance at a ring while 10-6 Philly is out. Philly crushed the Panthers 45-21 during the season.
2015 - The 10-6 Jets are out and 9-7 Houston is in. As was the case with the Pats and SD in 2008, at least Houston beat the Jets, but it still doesn't change the fact that the Jets had more wins.
That means that for the first 6 years this realignment had no teams that made the playoffs with a worse record, but for the next 8 years it has happened 6 times. I won't even get into the amount of games hosted by teams with worse records than the teams they hosted. That's a thread all it's own.