There is nothing difficult about this dogma. Mary now shares the first fruit of those who have been raised. She is where we want to be. Where else would the Mother of God be if not in heaven with her Son?
It is also perfectly consistent with anglican theology. Thomas Ken, that great anglican divine writes in his hymn "Her virgin eyes, saw God incarnate born" -
"Heaven with transcendent joys her entrance graced,
next to his throne her Son his Mother placed;
and here below, now she's of heaven possessed,
all generations are to call her blessed. "