Is Christ deaf or unable to attend to all our prayers at once that He needs Mary’s help? I think not. Christ hears our prayers and responds while we are still praying. Mary is not needed to pass anything along.
Roman Catholics seemingly reject the New Testament on this issue.
26In the same way the Spirit also helps our weakness; for we do not know how to pray as we should, but the Spirit Himself intercedes for us with groanings too deep for words; 27and He who searches the hearts knows what the mind of the Spirit is, because He intercedes for the saints according to the will of God. Romans 8:26-27 NASB