“but to be unaware of the Catholic explanation for it after 25 years of study is odd.”
I am not unaware of it.
I just find it to be without Scriptural support.
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“... and consecrated bread is what was left the Apostles at Emmaus after they asked Christ to stay with them.”
Now there’s some poor exegesis.
What's poor about it? Christ explained the scriptures. They asked Christ to stay. He consecrated bread and left. They recognized Him in the breaking of the bread but not in the person of the pilgrim. This essentially describes the Mass: the scripture is explained, and Christ, my Lord and my God, is recognised in the consecrated bread held by the priest, the Christ unseen.
Such a standard shows unfamiliarity with the word of God. The Holy Spirit Himself testifies the scriptures are not the entirety of God's word.