German TV just talked to the national coach and he said that Hofmann is in great shape, but his left leg is "too soft", otherwise he would easily be throwing 84 m. Röhler on the other hand has had a technical flaw for multiple months now, so his performance wasnt a shock. Röhler also said that he is focused on Tokyo already and i still consider him the favorite for 2020.
I am surprised you picked only 5 medals for Germany ... what about Hussong, Krause, Schwanitz, women's 4 x 100 m relay?
I think Germany will end up with 6 medals (Klosterhalfen, Mihambo, Vetter), which is decent, considering the missed chances by Hussong, Linke, the women's 4 x 100 m relay, Hofmann (probably) and the absence of Carolin Schäfer (who could have won bronze in her normal shape).