It is because Communion in the hand started as a liturgical abuse back in the 1960’s in order to mimick the practice done by Protestants.
When you look at how communion in the hand has now “become the norm” (even though it is currently an indult), I mean the history of it…how it was banned in the early Church and then reintroduced by Protestants to show their disbelief in the Real Presence and the Sacrament of Holy Orders…and how it started happening in the Catholic Church- as an abuse, and how the Church tried to stop it to no avail…
When you learn about where this practice has its roots…like “The Reform of the Liturgy” from Annibale Bugnini…then you can see why we “traditionalists” have a problem with it.
“The way we worship expresses our belief”. The Protestants demanded “Communion in the hand” in their “Lord’s supper” to express a belief- or rather a disbelief in the Real Presence and the Ministerial Priesthood/Sacrament of Holy Orders.
In 1977 I remember the nuns teaching us “It is sacreligious for anyone but the priest to touch the Sacred Host with their hands” - “The priest’s hands are consecrated for this very purpose, to touch the Sacred Host”.
At my parish lay people are STRICTLY FORBIDDEN to touch the Sacred Host. It is considered a GRAVE SACRELIDGE to do so. It is even considered sacreligious for anyone to even touch the Sacred Vessels such as the chalice or ciboria…even the Sacristan must wear gloves.
Ken