Dispensationalist Christians will tell you that since the crucifixion we're in a separate state of grace and God does not express His will in the same way He did in the Old Testament so that's why we should not interpret these natural events as expressions of God's Will and I find it kind of surprising that this tends to be a fundamentalists' view. However they seem not to also consider that even if God has been toning down the thunderbolts of late He clearly used to smite folks left and right so this kind of thing is very much part of His nature and should sound more old fashioned than crazy.
Well okay...but if disasters are not expressions of God's judgement then neither can good fortune be a sign of His favor or blessing. Right? Well not exactly. Insofar as I can tell ALL Christians believe that God blesses us on earth even if He isn't passing out disfavor. In fact I'd go so far as to say that fundamentalist dispensationalists are especially inclined to see God's favor expressed explicitly. This is finally what American Exceptionalism is all about, but it really can't run both ways AND be serious.
But even non dispensationalists, like Catholics, do not see the hand of God at work here even though they tend to be more comfortable with the idea of God's judgement in our time. All of which brings us back to Robertson's bat shit crazy comments.
I find that believers in general struggle mightily with the notion that their active God might behave in a way that offends their sympathy. For instance I think most Christians are somewhat comfortable with the idea that AIDS is God's judgement on gays. Ostracizing gays is part of their socio-political agenda but watching children suffer the consequences of a natural disaster is not and I don't think it is an accident then that almost no Christians see the hand of God in Haitian suffering.