As part of this evangelization there was a strategy to establish Christianity and its priests as different from the local pagan priests and shamans. Distinct and austere dress and celibacy were part of that. Since torture and martyrdom were often also involved, requiring celibacy tended to weed out those unwillingness for the full sacrifice of self.
As I said
“It never improves anything when we add to God’s word our own desires or intentions, no matter how noble we may think it is.”
You are basically trying to justify how “man” knows better than God as to what constitutes the requirements for God’s priesthood.
Do you honestly believed God overlooked the challenges of early evangelism and needed man to correct the requirements He Himself created?
Where does God say “require celibacy” to ensure willingness to serve? I would think the Creator of everything might have mentioned such an extreme requirement if it was actually so.