Who believes that the Bible was translated many times before it was finally translated into English?
Yes, the Bible *was* translated many times into many languages before finally being translated into English (which didn't exist as a language when the Bible was translated into other languages for the first time).
But the argument implies that our English translations were sequentially translated into various languages before being translated into English. Something like this: The Hebrew text was translated into Aramaic, and then into Greek, then Latin, then [any number of other languages], and then into English.
This implies that our English translations are several steps removed from the original languages.