Derech Sichah, which is a more accurate book/sefer which quotes Rav Chaim K, quots Rav Chaim as taking issue with the name Matan. He says matan who is mention in Tnach was an evil person. He is quoted as having told people to change their name to Natan (Nossen).
This, well-known sefer makes no mention of your new claim. What does this suggest?