Having more injuries than any roster could reasonably overcome is not an excuse for having zero depth. It's literally the most illogical argument anyone could make in defense of having zero depth.
Furthermore, the Braves did not lose the most projected WAR to injury, not even close. The Astros, Orioles, Dodgers and Red Sox all lost more WAR than the Braves. The Dodgers and Red Sox went to the playoffs. The Astros won 87 games, which would have been an NL WC team. Only the Os had a worse season...by 1 game.
At the end of the day the Braves missed the playoffs by 7 games. Maybe if the Braves had more depth (or any depth at all) so they didn't give Nick Allen and his 53 (yes...fifty three) wRC+ 416 PAs (yes...four hundred and sixteen), they would have made up some of those 7 games. Maybe if the Braves had anything resembling MLB depth they wouldn't have had to give Verdugo and his 66 wRC+ 213 PAs to go along with putrid defense. Or Stuart Fairchild and his 68 wRC+ over 55 PAs. And on and on with the absolute garbage players Snit rolled out there for significant playing time. There were garbage players on this roster on opening day, and it never got any better.
Let's talk pitching depth. Elder led the team in starts. Great plan!! You know who was 6th in starts? Joey Wentz...a complete scrap heap filler. Let's not forget the amazing work guys like Fuentes, Carrasco, Quantrill, Blewett, and Cox contributed in their starts.
There was no depth to cover any injuries, so of course a lot of injuries sunk the season. If the roster couldn't cover 1 injury, how in the world could it cover 5? And the season ended up being sunk by 7 whole games while guys who aren't even AAAA players got serious run with a tomahawk on their chest.
The lack of depth is 100% on AA. He fucked up. Period. No "yeah but what about" comments change that fact. AA fucked up and made a bad season a catastrophe.