It's a good lecture, but one part was factually incorrect:
The Sheikh asked if there are any Bosniak or Jugoslavian brothers in the room and then proceeds to inform the audience that Balkan Muslims owe their religion to Tarik ibn Ziyad. It's true that it was Tarik Ibn Ziyad who was the first Muslim military commander to land on mainland Europe, however, his forces did not, nor did their successors, spread Islam to the Balkans.
Islam reached the Balkans through Ottoman conquests beginning in 1356, when the Ottomans established their first foothold in the Balkans at Kallipolis (Gelibolu in modern European Turkey).