Manna is regarded as being a type of the true bread from Heaven, Jesus Christ, and hence the Host, tying Exodus back into the Eucharist yet again mgist.
Sometimes, criticism is constructive and instructive if one chooses to receive it in that manner.
You are making false statements. The Catholic Church sees as the main basis for this belief the words of Jesus himself at his Last Supper: the Synoptic Gospels (Matthew 26-28; Mark 14:22-24; Luke 22:19-20) and Saint Paul's 1 Corinthians 11:23-25 recount that in that context Jesus said of what to all appearances were bread and wine: "This is my body … this is my blood." Of course the basic Covenant of God from the Old Testament remains in all history.
You understand very little about the Catholic church, please do not pretend otherwise.