every catholic priest that performs mass and everyone who seeks spiritual life by eating the eucharist....
And the Lord sent the Holy Spirit to teach us the truth of all things. Not everyone is at the same level of understanding because not everyone has the same experiences with the Spirit. They ask different questions. Some have a harder time understanding truths. Some understand very easily.
There is no truth in the teaching that the body of Christ is edible. Anyway, if what you believe is the holy spirit actually came at pentecost 'to teach us all things" how is it that you don't know that it is wrong and against the will of God for people to seek spiritual life by worshipping and eating something made by human hands?
Should we throw out Mathematica because some understand advanced calculus and trigonometry and some struggle with basic math?
False comparison. If you learned that 1+ 1 +1 = 1 you will never understand calculous.
Yes, you should throw out any and every teaching that is false.