I am applying for the Arts in Education program. Yes, you are right! The admission process does not require interviews for the masters. I have asked them about it before, and they told me that "a small number of applicants are asked to hold Skype interviews with us so that we can learn more about their English language ability based on the materials that they have submitted, including but not limited to TOEFL scores. This does not vary by program."
I think I received the interview request because I am an international applicant and they want to learn more about my communication skills. Therefore, you guys do not need to worry about that!