Absence of relics is solid evidence that her body was not buried. This evidence supports the testimony of Greek Father St. John of Damascus, champion of the Assumption.
“The unavailability of Mary’s relics or records of her relics is solid evidence that her body was never buried according to the standard practice. Given that, the most likely scenario (and the historically chronicled report) was her bodily assumption into heaven.”
Based on your argument I guess the same could be said of Jimmy Hoffa.