what double standards? a British designed vehicle is going to the British tree. it was a prototype that was designed for an Australian contract, Australian vehicles are in the British tree unless they are designed and built in another country (see M1AIM)
The KF-41 was not added to the German development branch due to the fact that it is not in service, therefore only in Hungary. This technique is also not in service with England and was created for Australia, but falls into the development branch of UK
The company definitely does not have any double standards)
i am not that much of a meta player, i am happy enough when i can play around with exotic features like that and it will be the only possible APS germany can get until possibly Leopard2A7A1 which is god knows how long away and the Boxer Schwerwaffenträger capabilits arent full known either if it gets them
*built to meet a requirement posted by Australia at their own initiative. Its never left prototype stage.
This is a British prototype vehicle as it stands. If Australia ordered it then one would treat it differently and it would go to Australia with potentially Britain in game potentially getting some prototype variant.