User blog comment:B214/Question & Answers 5/@comment-3965848-20150620061640/@comment-3965848-20150620070001

Thank you, it's really great to know that they are, I had my doubts because even though they had cat ears, it didn't match thier hair colours and they didn't even have any tails.

My guess is because TNK probably weren't aware of Nekomata's in the DxD-verse so they animated them as like cosplayers when going through Vol.2.