Never said all of the losses were bad and sure, players have to make plays. But none of their three playoff wins since 2011 have been impressive wins, and several of their seven playoff losses have been really, really bad.
It's not just a specific snap or a specific decision or a specific interception. It's part of a pattern of underperformance in the playoffs over a decade long period, and the accountability has to start at the top. It's Tomlin's job to have his team prepared to execute and time and time again, they don't in the playoffs. That'd be fine for the Lions. It shouldn't be for the Steelers. And with Ben almost done and our division having Jackson, Mayfield, and Burrow in it, not even regular season success is guaranteed moving forward.
If you take away his name and reputation and I just told you about a random coach with a 3-7 record in the playoffs over the past 10 years, no playoff wins in the past four years, and two home playoff losses since 2017 as big favorites while giving up nearly 100 points, all despite having a HOF QB between 29 and 38 years old the entire time, you'd wonder why he still has his job on such a competitive team. And on most other teams, he wouldn't. Because of the success he had in his first few years and because he's the coach of the Steelers, he's among the most secure coaches in the NFL, but he shouldn't be. He's been living off of the reputation he built with the team he inherited for way too long.