There is more to it than just that. In the video version of this story, Simcha interviews some from among the Pathans and makes a pretty good case. Some may have fled to the south of india after the destruction of the second temple. But scripture tells us that the 10 tribes had long since been in that region. Simcha deals with the names of places listed in scripture and draws comparison to the modern names which still bare up under comparison to the hebrew counterparts. He goes into enough detail to be quite convincing. It isn't really a common sense notion that Muslims would take on the practices of Israelites whom they bare a rather extreme hatred for. I think you'd have a pretty difficult time selling that. So I guess I'd say, try to keep an open mind - if you can.
i agree bro/sis 100%