If you don't address a "doctrine of filial affection" then you haven't dealt with the historic root that Mariology grew out of. This is what convinced Scott Hahn that catholicism's argument wasn't bankrupt. It covers both the immaculate conception and the assumption in their view. In Hahn's "Hail, Holy Queen" he says (pg158)
(old priest in pulpit is speaking; Hahn is listening) "We're celebrating our mother today!"
..."if anybody should ask you," he thundered, "'Why do you believe that Mary was conceived without sin?' what are you gonna tell him?" He paused.
"What are you gonna tell him?" He paused again.
Then with a twinkle, he said, "Tell him this: If you could have created your mother and preserved her from original sin, would you? Would you?....Of course you would!
"But could you? No, you couldn't! But Jesus could and so Jesus did!"
Now, is your teaching about Jesus' filial affection and the extent to which he would go for his mother?