With regard to prophetic sensationalism among premillennialists, Dr. Robert Duncan Culver (not strictly a dispensationalist, but an ardent premillennialist nonetheless) relates the following:
Unfortunately, the most grievous wounds to millennial faith have been inflicted by overzealous and sensationalist advocates among writers and preachers. As the good prophet in Zechariah 13 explains, his trauma is from “wounds . . . with which I was wounded in the house of my friends.” This has been going on as long as I have been alive [1916- ed. note] and continues unabated. These well meaning, and I think incautious people, make the millennium vehicle for far more doctrinal freight than the biblical undercarriage was engineered to carry. Some recent “evangelical” fiction has carried this to grievous extremes in my opinion. These self-inflicted wounds by premillenarians may explain, in part at least, why presently literal interpretation of biblical predictions of a future reign of Christ on earth has been under severe attack from many quarters. As a matter of personal observation these excesses have certainly caused some to renounce chiliastic teachings and prevented others from accepting them.
Robert Duncan Culver, The Earthly Reign of Our Lord With His People, p. 7 (Third revised edition of Daniel and the Latter Days.)