Originally Posted by DMcFadden

Yes, there is a version of dispensationalism that denies that the Gospels have much to say to the church age at all. Jesus offered the Jews the Kingdom, they rejected it, God went to his mystery parenthesis of the Church Age (= Age of the Gentiles). In that sense, the Sermon on the Mount would be pure millennial lawcode and the epistles would be the only really applicable part of the Bible.

Such dispensationalists are no more typical of rank and file dispensationalists (and no more "the logical conclusion of the philosophy") than hyper-preterism or hyper-Calvinism typifies or represents the "logical conclusion" of Reformed thought. The Reformed have their Harold Camping and the dispensationalists have their Acts 28 Dispensationalists and Mid-Acts Dispensationalists.