Last season Atlanta was better than this year's Atlanta. They sustained an injury to their starting shooting guard, like the Celtics, they didn't have one of their best bench players, like the Celtics, and their starting small forward was playing hurt, like the Celtics. Consequently, they lost to Cleveland without Love, or even Irving for a game, in as many games as last year's 40-42 Celtics did.
Bradley, Crowder and Olynyk finished 2nd, 3rd and 4th for made threes on the team. All three are hobbled or out. For an already poor shooting team, that's basically death. I don't think anything that's going on is particularly surprising or reveals a flaw about this team that we didn't already know.