Pretty much, yep.
Also, plenty of coaches put players in bad spots and then say, "players have to execute" which pisses players off because they're put in impossible positions.
Peters was put in crappy situations multiple times and McVay was pretty much owning it. He and Wade know Peters is out there on a slightly gimpy leg and made some questionable calls.
The call where there was zero over the top help with both safeties in and Peters got beat on a double move which wasn't supposed have mattered because they pressure was supposed to get home was Wade over-compensating to stop the run and Wilson beat the (lack of) coverage by extending the play.
So, even as Peters took ownership among his teammates, that made sense to him because the coach didn't throw him under the bus as so many coaches do.
Knowing that this staff is so prepared to put players in position to do their job is huge. Also knowing that if the coach screws up, he'll own it is also huge.
A player can know that they have a very good chance to compete and make plays AND won't be the coach's scapegoat if they make a bad call.
That level of player support is still pretty rare as the NFL continues to change and one of the reasons why McVay's style of coaching and the culture he installed won't get old like others have.