The ones that saw combat were the F-5C. They were modified F-5As, but not the same.
its not a copy paste and not merely a redesignation. Several modifications were made and as I said, US variants are planned. The US is going to get something else this update. So we are not dropping all plans when we already have plans made for US F-5s. The F-5A is not a variant they used.
It is more natural that the US is going to get more jets than everyone else. This will always be the case.
It does not mean they automatically also get the things the