Normal
I think as a Sikh, I cannot deny that some aspects of Sikhism may have had some Hindu aspects eg Ghatka comes from Shastarvidya (which the monk Boddhidharma Bodhidharma. Zen or Chan meditation was founded by Boddhidharma. studied too). We Sikh's sometimes have a tendency to purge even good influences of Hinduism from our faith. I think this Nihang fellow is just acknowledging those good bits.