There's more silliness, he bases this on the fact that in Islam we don't use the term 'father' to describe Allah. He also based this on his misguided belief that Muslims worship the Kaba ( clearly some Christian missionaries are still under the '60's misconception that Muslims worship the kaba).
For his first premise, yes Jews used the term father for God. This was not something literal. It was simply a term that denoted a close and personal relationship with God. In Islam one can have a close and personal relationship with God. In fact, here's a RABBI confirming that Muslims worship the God of Moses. Ironically it's a response to a Christian (who can be seen at the beginning of the video).
Rabbi Rav Ron Chaya Refutes Shamoun's claim (begins @ 2.05 timeframe)
Interestingly enough, the Rabbi does not believe Trinitarian Christians worship the God of Moses in the way Jews and Muslims do!
As for Muslims worshipping the Kaba. That's nonsense. The Kaba is simply a place of worship built by Abraham and Ishmael (pbut). I'd advise Shamoun to actually study and think before writing. He writes a lengthy article effectively espousing nonsense. This is a product of his hatred of Muslims and Islam. Here is a video by Zakir Naik explaining that Muslims don't worship the Kaba:
May Allah guide this man away from hatred and towards the truth of worshipping the God of Moses, Jesus and Muhammad (pbut). Ameen.
Prophet Muhammad (p) and some miracles which were performed by the Will of God:
Watch a Muslim dominate a debate about whether Muhammad is in the Bible - Samuel Green and Zakir Hussain:
Jesus taught people to do the Will of God (according to Mark 3:35) in order to become his brothers, mothers or sisters. A Muslim means one who submits to the Will of God. Do you want to become a brother of Jesus? If yes, become a Muslim. Now is the time.
Learn about Islam: