When you're 16 weeks into a season, and you fire a coach almost immediately after an emotionally charged loss to a division rival that would have all but guaranteed your team the #1 seed, it feels like scapegoating.
When your defense allows an opponent to overcome a 16 point deficit with 8 minutes left in the game, something that had only been done against your team once in franchise history, and in the process allows 24 points in the second half/OT (removed the special teams TD there of course), and also allows three 2 point conversions, and you give the special teams coach the boot, that feels like scapegoating.
When your offense has to punt 4 times in the 4th quarter, and even on the FG miss fails to get closer than a 48 yard attempt (makeable but challenging), and you fire your special teams coach, that feels like scapegoating.
When every unit on the team fails (despite 37 points for the offense, I'd argue that 4 punts in the 4th quarter qualifies as a failure for that unit), and you single out one unit, it's practically the definition of scapegoating.
To be clear, we don't know what conversations have been had over the year between McVay and their ST coach, since there have been multiple issues over the season. I'm not saying a coach shouldn't be held accountable for his unit's lack of performance. Under similar circumstance our offensive coach was fired last year....AFTER the season. Firing the ST coach now, under these circumstances, has the FEEL of scapegoating to an outside observer. It looks like McVay was so pissed about the loss that he just had to find someone to blame - and he picked the guy whose unit had one bad failure instead of the units that had multiple failures. Yep. Looks like scapegoating to me.