You’re obviously drinking up every gallon of Gaijin’s FOMO koolaid thinking that a BR I mobile AA emplacement is going to devalue your time you decided to put into the game for said BR I mobile AA emplacement.
I did the event too and got both AA tanks, it SHOULD NOT have been an event vehicle in the first place when the Germans and the Soviets lacked a BR 1 AA tank compared to Japan and the US.
It was a waste of an event for something that should have been TT.