As thistle pointed out many times, you free to believe whatever you want. The physical death of Mary is not a dogma.
The Church just affirms that : the Immaculate Mother of God, the ever Virgin Mary, having completed the course of her earthly life, was assumed body and soul into heavenly glory.
The interesting thing about everyone using that phrase as a REASON to believe anything they want, is that before that statement, the death of the Virgin Mary was not a subject of debate. It is only since that statement that the hairsplitters have taken it and run with it. That a Papal Encyclical would be the cause of losing sight of the Truth is sad indeed. However, the statement EVEN AS IT IS WORDED, still means after the Virgin Mary died. No where does the Church use such a statement as a way of saying someone did NOT die. It is for you and your comrades, to PROVE that the obvious intent of the statement does NOT mean death.
Furthermore, that statement, in and of itself, even if we ERASE the past 2000 years of Church history, would still NOT mean that the Virgin Mary did not die.
However, as Catholics, WE MUST ALWAYS LOOK AT PAPAL DOCUMENTS in light of the history of the Church, and Church Tradition. They are not pronounced in a vacuum.
The Church used this way of describing Mary’s death precisely because it is shrouded in Tradition, not in Scripture. Therefore in deference to the Church of the East, the statement was worded in such a way, so that both the Eastern and Western Church could agree on the substance of the Dogma, which is the Glorious Assumption of Mary itself.
Therefore, as Catholics, we know, based on the doctrines of the Resurrection, and the Teachings of Jesus and the Deposit of Faith, that the seed must first die, before it can be resurrected to Glory. Jesus is the Resurrection and the Life. How can the Virgin Mary NOT have had a resurrection, as Jesus taught, and as we all know? There can be no Assumption without a Resurrection. It was the Glorified body of the Virgin Mary that was assumed into Heaven. Not a human living body without a Resurrection.
It is a mistake to believe that the Church “doesn’t know” or that we can believe “anything we want.”
We must believe, according to the doctrine of the Assumption, that the Virgin Mary COMPLETED the course of her earthly life. Meaning she died. The Dogma doesn’t say “At the end of her earthly life” but she “HAVING COMPLETED.” It was finished and over.
As has been said, the Church uses words very carefully. If the Church wanted to be vague, it would have said “at the end of her life”, which is ambiguous. “HAVING COMPLETED” is NOT ambiguous but clear.