Unfortunately, there is no way of knowing whether they will or won’t make a difference. With that being said, the fact that you finished all of the necessary coursework with a very competitive GPA for Anthropology makes it unlikely that they will hold it against you. A high performing student at an American college is going to be competent in English so it would seem ridiculous to reject you because of those grades.
You have to report any post-secondary school education as a rule so I would imagine that they just want to have the transcript for the sake of covering all of the basis.