Concerns and criticism are normal of course. A lot of the takes about the penalty just looks like pent up, unleashed gripes about DA while they already want to see him gone. It’s a pattern from the anti DA crowd.
For the most part there’s silence on the board and no credit given to DA when the team has a relatively perfect win like the recent Patriots and Colts games. A lot of props are given to the star players and veteran team captains like the blowout and comeback wins are in spite of the HC. Then when there’s a questionable call people can’t wait to unload on DA. He’s not the only HC of a team with a winning record to make a mistake or two this season.
Everybody has different opinions after a game. But focusing a lot on 50/50 calls to the tone of fire DA isn’t usual and warranted after a team wins and moves to 1st place as more good matchups on the schedule are on the way.