Every conclusion is only as good as the basic assumptions and presuppositions it is derived from.
And that is the blunder many Muslims have committed when quoting Burton. As long as you consider the Sahih Hadith collections as an authoritative source, you cannot possibly refer to Burton as evidence without losing intellectual integrity. Make sure your results are derived from a consistent presuppositional basis. However, the question is whether or not these missionaries have taken the time to consider the repercussions of such actions. A simple reflection upon the logic and intentions of their ideas reveals a very sinister theme.