I'm a factory trained BMW technician, so I'm pretty familiar with the insides of a lot of German machinery. I acknowledge that German products have a reputation for being high quality, but I don't feel that it is always deserved. I've owned THREE air-cooled VW's, two air-cooled BMW's, a DKW, a Penton, and a Fendt shaft-drive bicycle. Quality was "good" but not exceptional.
I abandoned VW for Toyota and have never regretted it. I still own the same Toyota 22R pickup 20 years later.
I got off my BMW 750 and onto a 1991 Harley Davidson 883 Sportster, and see the HD as being of superior quality in almost every respect. Those parts which are made in Asia, such as the carburetor and suspension components make the Sportster a better machine than earlier models which used exclusively American components.
So, THIS BMW technician sees no reason to poo-poo products from Asia for any reason.
If ADA sees fit to produce tanks in Japan or China, then I have absolutely no problem with that decision.