I want to say first off, I’m aware of the WWE/WCW’s history and really appreciate what Diamond Dallas Page is doing with his ‘DDP Yoga’ - it seems to help a lot of those wrestlers that really need it.
To your question, no. I have no information saying that DDP had permission to use a knock-off version of ‘Smells Like Teen Spirit’ for his theme music. Dave hated it, but wasn’t aware at the time that DDP was a huge Nirvana fan and realized that ‘Teen Spirit’ was a huge anthem for teenagers in the 90’s.
“Jimmy Hart and I did the song together, and Jimmy is a genius. I felt that ‘Smells Like Teen Spirit’ was the sound of the 90′s that was awesome for me. Dave Grohl was hot cause that was like a rip off of their music. He heard it and was like “WCW owes us money.” We did just enough changing the notes. So it was it, but wasn’t, Teen Spirit.” - Diamond Dallas Page.