The Braves replaced Acuna's production in 2021 when he went down with multiple band aids. Acquiring all star talent is not needed. You can acquire players that improve your situation moderately and have it be a better move. In 2021 which trades would you have done if you were the Braves acquiring 4 OF's (Pederson, Soler, Duval and Rosario) versus Bryant or Turner and Scherzer? The acquiring of Pederson, Soler, Duval and Rosario basically won the WS for the Braves in 2021. The Giants acquiring Bryant got them a divisional title but were beat out by the Dodgers. The Dodgers then get killed by the Braves in 6 games.
Sometimes giving up premium talent for all stars is just not worth it. The return on investment for the Braves was far better than what the Dodgers and Giants got in return.