Agree with the bolded, although I suspect some players like playing under him more than others. Vets, and Minnesotans come to mind.
I'm not sure how you judge and value one coaching skillset over others though -- does inspiring player loyalty more than make up for average or below-average tactical abilities? Does the reverse also hold? Isn't it possible to find both in the same person (Trotz, Cooper, Sullivan, undoubtedly others also)? If the guy with high EQ can get you to a conference final and no further, and the brilliant tactician can win you a cup even while alienating certain players, who do you go with?
I'm also not sure why only a team drastically underachieving gets a coach fired (I'm not saying that this is your own view). If a team consistently underachieves, a coaching change seems perfectly reasonable, especially when said team has pulled out all the stops and spent big to put everything in place for success.
I agree that only the end times are likely to result in s PoMo firing, but I'm not sure that's a good thing. If he gives a PC where he says something like "Fellas, I've spent the offseason reviewing each and every one of my roster and tactical decisions since 2019, following The Ehlers Plan, and I'm delighted to introduce the addition of Joe XsandOs to our coaching staff, who will take the reins on strategy while I continue to manage player relationships and media and Dave Lowry focuses on special teams, hell yeah. I think we'd see some real improvement and I'd be a happier fan.
But sure, he's good at what he's good at, and it can definitely come in handy at times.