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So Google Translate is often wrong, and generally should not be trusted regardless, but I do not think that is actually the issue in this case.
I think the fundamental issue here is that in Japanese, ...
As you may know, Japanese has some common family names just like Chinese has 張 or 李. So default names like the following are what you see, for example, in form templates.
(Actually 山田 ...
Strictly speaking, I think you are right about 話せるようになれる, and it does sound odd if you think about it. At the same time, it should be the kind of redundancy that passes unnoticed in ordinary usage.