Why did P.O.D. thank some Non-Christian bands in their dedications?
When you get help or inspiration from somebody, it’s only right to thank them. P.O.D. was inspired by these artists musically, so in a way they helped with the album, and so they deserve some thanks. The fact that they are secular bands makes no difference to the fact that the guys were inspired by their music, so they still deserve thanks. Just as a Christian band may help them, so do secular bands. It would not be right to just pretend that they didn’t help and not thank them. When a non-Christian friend does something for you, it would just be odd and rude not to thank them.