Probably because the earliest Wayist and Christian movements were more focused on the experience of the Living Christ who rose again after the crucifixion that people still encounter in prayer and meditation to this day, As the movement spread, leaving the Jewish context it was born in, it encountered more middle and neo-Platonist thought, and they wanted to differentiate themselves from those who believed in a more spiritual resurrection.

A lot of the early arguments in the church were over the nature of Christ's humanity and divine status. These are still being worked out by the time the gospels are written, several of which include a bodily resurrection, but it is a more numinous body. It can be touched, but it can also appear and disappear, and possibly walk through walls.

We know there were several versions of the Gospel of Mark, and at least one of them had a longer passage about the last night in Gethsemane. Those who wanted a bodily resurrection read and wrote that into the text and based their beliefs on it. For me, the same Christ visited Paul, that visited St Francis of Assisi, St Julian of Norwich, and St Faustina. The Christ is alive, and however the individual wants to believe that or experiences it for themself.