What? Are you seriously saying that because of no presence of some bones, that means a woman ascended into Heaven?
Have you seen all the criminal cold cases of missing bodies?
Wait. Ignore that last comment. Instead, please see comment #79, which also applies to you.
(As for Elijah, perhaps you should consult Jesus on Elijah’s whereabouts, because what Jesus said in John 3:13 may cause you some confusion.)
Pilgrims were already visiting Rome to sites associated with the martyrdom’s of Peter and Paul by the middle of the 2nd Century. The tombs of other martyrs were likewise being visited. But no place was claimed for the burial place of Mary, even though she was greatly revered.