Paul NEVER called himself ‘Father’ or ‘Holy Father’ to anyone. Notice Paul was specific, ‘through the gospel’... and Christ flat out said to NOT call flesh beings .. Father, as in representative of the Heavenly Father... There is a world of difference in the ‘flesh’ body, and the ‘spirit/soul body’ which is what returns to the Maker that sent them.. flesh returns to the dust from which it came. Only the Heavenly Father can eternally destroy souls.
There is not going to be any bought and paid for commission to decide doctrine when the flesh age ends. Might be/go much easier IF the many would/could get it correctly before this flesh age ends... but, prophecy declares otherwise... people got to do what people do.
“I do not write this to make you ashamed, but to admonish you as my beloved children. For though you have countless guides in Christ, you do not have many fathers. For I became your father in Christ Jesus through the gospel” (1 Cor. 4:14–15)
Except that the “flesh age” will never end. Christ was resurrected “in the flesh”. He went to great lengths to prove that to the Apostles. He was resurrected to the same flesh that Adam lost with his transgression in the Garden of Eden.
When we are resurrected, we too will have such fleshy bodies. Nothing like our existing flesh, of course, but still flesh.