This, although perfectly true, is to miss the point entirely.
Jesus publicly FORGIVES THE MAN his sins.
All around knew that ONLY God could do this.
This was a clear and unequivocal statement to disciples, onlookers and religious bigots alike as to who Jesus actually was.
To refer to Him as Son of God is not really enough - God the Son is more apposite. The healing confirmed this claim as much as it could - but it took the resurrection to bring an absolute proof which all may test this very Easter.
It was Easter 1973 when I tested Jesus out and found my LIVING Saviour.