Yeah, but if you have the choice between a product with an existing history of backdoors and one which potentially, at some point in the future based on political prediction could have one, how do you choose?
Let’s assume you are not in the US and industrial spionage will be bad for you independend if it happens from China or from the US.
The answer isn’t that clearcut.
Also: banning a product based on the possibility that it could get a backdoor in the future? That would mean banning all products with an update functionality.
Edit: as you might notice this is not compelling evidence