One question here --
At the Last Supper when Jesus Christ instituted the Holy Eucharist, do you think he passed the loaf and cup to the apostles or did he place it on their tongue?
We are going back to our roots, no?
They were the first bishops/priests, so of course He passed the loaf and the cup ;-)
There is an old seminary saying, "Be not an archeologizer."
In other words, just because something MAY have been done one way at one time, it does not mean that was objectively better.
Such would be a denial of development of doctrine.
Hopefully, we have a more full understanding of the Real Presence today than 1800 years ago. St. Thomas Aquinas alone brought us lightyears foreward in our theological understandings. So today our practices of reverence towards the Holy Eucharist (hopefully) should be informed by 2000 years worth of development of doctrine and understanding.
You're kind of missing the point sister. We're not imitating Jesus or reenacting the last supper.
The concept of putting the host directly from into the mouth is giving proper respect for the treatment of His body. It's also more of a direct line.
It shows Him more reverence than putting it in a bowl and giving it to the meter maid who volunteers on Sunday, into her hands (wherever they've been) then into the hands of the person in line (wherever they've been) then finally into the mouth.
"We are going back to our roots, no?"
No.