I believe it pre-dates HD broadcasts, and all the various camera angles we have now, but the Music City Miracle was not a forward lateral. You have to follow the path of the ball, and not where the players feet were, between Wycheck and Dyson. At worst, it's inconclusive so the ruling on the field would stand.
Fair or not, I've seen similar things happen in other games, where a coach does not see the play or does not get word of what really happened in a play and is late throwing the challenge flag.
Also, fair or not, it's currently part of home field advantage where the stadium crew operating the video boards do not immediately show replays that may lead to a challenge initiated against the home team. Again, I've seen this in other games as well.
I'm glad my team got on the winning side of that situation, but I definitely see the unfairness to the away team. I'm not against revising the system to allow quicker video replays so a coach can make a faster snap decision to challenge or not.
Yeah unless I missed something, you can't blame Shanahan because he (and we) did not immediately have the inside replay that showed the ball getting loose. And strategically that is very early to be using a coach's challenge unless you're absolutely sure AND the result of the play was particularly meaningful. That play
arguably fits the latter criteria (as much as a first drive play could be meaningful outside of serious injury), but clearly not the former.
The idea that the head coach is responsible for everything that happens on the field is rubbish. If you truly believe that, then it logically follows that you give the players hardly any credit for execution. In other words, it wasn't Tom Brady and Co. that won 7 chips, it was Belichick (and Arians) "steering of the ship." It wasn't Jordan, Pippen, and the gang but Phil Jackson's wizardry. Just as we scoff when athletes scream "we are warriors!," let's not equate sports with military command structure. As a simple example, is it really Sean McDermott's fault that LB Ossai committed the fateful late hit on Mahomes?
If you want to argue the head coach should
take responsibility when the team fails, or if he's subject to firing as a result of poor outcomes, that is fine and a different point entirely. Because of the economics of pro sports (particularly in the NBA), the head coach is often the fall guy whether he fucked up or not.