The possibilities in a finality

In one of the papers I coauthored: "Finally, Section 6 concludes this paper". May be the writer thought about the possibility that finally one may not conclude a paper. Or perhaps, finally, one could conclude some other paper. Or perhaps, there is a Section 7, but Section 6 concludes this paper. Or some combination of the above -- Section 6 concludes this paper, but Section 7 some other. Or perhaps the author knows how very tedious the paper is, so he wrote the sentence to reassure the reader that there is an end to the tyranny.