Pure theological speculation here.....

Maundy Thursday, Our Lord is still alive, and so the Disciples partake of His Flesh and Blood.
Good Friday...Christ is crucified - the literal Body and Blood of Christ - as it concerns the Disciples (which later becomes members of the Catholic Church) do not have access to Our Lord as He is in His sepulchre.
Only on Easter Sunday morning with the Resurrection, do all have access yet again in a greater sacramental way, to the Body and Blood of Christ.
The theological reality of the priest being an alter Christus would allow for said priest to Communicate on Good Friday. How exactly? Good question!

The ole Thomistic cylinders would really have to firing to work that out!

Again, pure speculation.
After the last umpteenth neosspx 1962 Holy Week/Pascal Triduums - having now studied the pre 1955 liturgies - may I live long enough to partake of the latter. I would pray that the Resistance would take up the mantle and return to using the pre1955, the neosspx having long since become milquetoast.
