We know, we are clearly told that Christ was given full authority, but it is certainly not truth in any way, by any authority, that Christ is now all and we can disregard the Father because Christ was given this authority. The blood of Christ was given for our sins, the Father wipes our sins out through that blood, Christ is of major importance.
From Genesis to Revelation we are told of how major this is for us to know and accept. It is also of major absolute importance that God the Father is our God, our creator, and what we learn in the OT gives us the understanding of what we are to learn in the NT.
Christ told us to address our prayers to the Father.
According to scripture it is a distortion of the truth of the Lord to say Christ is all. According to scripture that is a distortion of the Godhead.