I would never suggest that theology is easy. In fact, I think it's impossible - His ways are not ours, and by definition are not knowable by us. Nor would I ever suggest that one Christian denomination is uniquely able to Divine Truth. I am Roman Catholic and that is the faith tradition that my inner life leads me to, but there is no doubt in my mind, with all the certainty I can muster for any matter, including my belief in God, that I have met people of other faith traditions, including those close to that of Rev. Robertson, that are filled with the Spirit. It's a conundrum I cannot harmonize.
But if no denomination can be held to hold Truth inviolate over all others, certainly we agree on some things, such as the fact that the Man/God that walked the earth 2000 years ago by the human name of Jesus (or Yeshua, to be more correct), from Nazareth, was the fullness of Revelation. Put simpler, WWJD?
And I find it impossible to reconcile belief in Jesus and in his teachings, as revealed to us though the full Bible, with believing that God struck down PM Sharon for "dividing" his land. Certainly we never rely on the OT alone - if that were the fullness of Divine Revelation, the Incarnation would have been unnecessary.
At the most basic level, Christ (and his Church) taught us that God was the God for all humanity and all the Earth, not a tribe or twelve, or a certain land. I don't mean that to suggest that the Hebrews do not hold a special covenant with God - to suggest otherwise would negate all of the revelation of their special covenant. Another conundrum beyond human understanding, IMO.
But again, if you believe in Jesus as Christ, as Godhead, I don't see how you can believe that a certain land is favored, especially to the point that God will kill those that interfere with that special deed. Really, that's a "concept" that Mohammed thought the "prophet" Jesus had all wrong - there is a certain Divine Land given to believers that the unfaithful (infidels) may not reside upon or suffer God's wrath. Which is why Rev. Robertson and Iranian President Mahmoud Ahmadinejad sound so much alike on this issue. Both are speaking outside of the understanding of God that Christ's Church brought about - that the Triune God is the God of all humanity - loving all of humanity and created in His image.