In all fairness the yestervark and crusader AA MK2 are foldered together, despite being completely different,.
Yet most have either different turrets, guns or mounts. This would impact a vehicles speed, survivability, firing angles and rate of fire (depending on the 12cal).
Sweden doesn’t need the best of every world. Having an auto cannon is a tradeoff. It would be foolish for one nation to have the best SPAA of every type.