Did he ever address what would happen if a woman was raped and her attacker was never identified? What is she to do then? Stay single for the rest of her life? What if she were molested by her father? Would she have to marry him? She could never reconcile with her "husband" in those cases. Besides, even the Biblical passages on rape (though difficult in our modern eyes) negate the point Tony makes in at least two ways.
It says in Deut 22:28 that first they must be discovered, which doesn't always happen. As Lisa suggested, take the case of a non-Christian woman at a drunken frat party. She passes out and wakes up no longer a virgin. Who is her husband? Can she ever marry, even if she repents and turns her life over to the Lord? Continuing with Deut 22:29, it is only afterwards that she must become his wife. Didn't she become a wife when she lost her virginity? Apparently not. The man must pay the father and then after that he becomes responsible for her for life.
Whatever one may say about this passage, it was a way to keep the woman from becoming an outcast, as happens even in modern times in Islamic and tribal cultures, and happened in Bible times to David's daughter Tamar when she was raped by her half-brother Amnon. (She was desolate her whole life, so no, she was not just waiting for her "husband" to pass away to find another.) Also, I'd say another point was to create a real deterrent to such acts. Would you really want to have to provide for and be unable to divorce a woman you'd violated? You have to sleep sometime!! (Burning bed, anyone?)
Besides, this whole thing of returning to a prior "marriage" and calling present marriages "continual adultery" flies in the face of Deut 24:1-4 which clearly states that the woman, once remarried, cannot return to her former husband under any circumstances. Although divorce was permitted for the hardness of people's hearts (which is really the reason for the breakdown of marriage), God recognizes it. He even symbolically divorced His wives. And that wasn't due to the hardness of His heart, was it? This shows that divorce is sometimes warranted and can be initiated by the innocent party. When Jesus talked about marriage and divorce in the NT, it was in context of the OT. He was speaking to a people ingrained in the Roman culture (much like ours today) where fornication, infidelity, temporary marriages of convenience, and unjustified divorces were rampant. He was telling people not to try and play tricks with the law because God knows the heart.
As a man who is angry with his brother is guilty of killing him, as a man lusting after a married woman commits adultery with her, as a wealthy man idolizes his riches, so also a man or woman who divorces in order to be free to get another spouse commits adultery. Jesus reveals the heart of the matter, but stated clearly that He did not come to abolish the law. Remember the Samaritan woman at the well? Did Jesus say, "You've had 1 husband, go back to him?" No, He said, "You have had 5 husbands and the one you now have is not your husband." This fits with Deut 24:2 where after a divorce "she may go out and become another man's wife." He recognizes marriage as a covenant, not just a sexual act! However, it was designed to be a life-long commitment and believers should not be looking for the minimum threshold to hit the eject button. Jesus doesn't let Christians who wantonly divorce off the hook at all. If married Christians really fulfilled the royal law of love for God and love for others, divorces among Christians would be extremely rare and our families would radiate godly joy, peace, and harmony. God wants us to worship Him in spirit and in truth!
So, my conclusion is that Tony's doctrine (which I read) is simplistic, does not honor or account for all of God's revealed word, does not honor His character, repeatedly ignores both spirit and letter of the law, and binds heavy burdens on people they cannot bear. Neither my wife nor I had sex before we married, so I have no vested interest in rejecting the doctrine. I do so because it conflicts with Scripture, pure and simple.