I don't think they are the same person. This guy looks much taller than Muhammad Taweed. I did enjoy listening to this gentle Sikh man. The poor guy. Speakers Corners Debates is where other faiths get bullied. They always end up with someone who is super aggressive and posts the video on YouTube as though they were the victor of the debate. Then, someone arrogantly boasts that they are victorious to sell the idea of Islam. They are the equivalent of religious infomercials trying to sell you something. Apparently, they think they are 100% victorious. I disagree. I think this Sikh man made a much better argument and had a much less aggressive message.
I think this really highlights the importance of doctrine. It is kind of like the saying, "you are what you eat."
If your doctrine teaches aggression, people will be influenced to be aggressive because of this. If your doctrine teaches nonaggression, you will be influenced to be nonaggressive in accordance with the doctrine that you believe. You can visually see that SIkh is a doctrine of nonaggression. It is also completely evident that Islam is not a religion that teaches nonaggression.