Great. But if you address the Quran, the merit is from the text. Not from what it doesnt say.
It says what God means it to be. Christ said it is finished, so that is why Muhammad is rejected by the Christian.
John 19:28 After this, Jesus, knowing that all things were now accomplished, that the Scripture might be fulfilled, said, “I thirst!” 29 Now a vessel full of sour wine was sitting there; and they filled a sponge with sour wine, put it on hyssop, and put it to His mouth. 30 So when Jesus had received the sour wine, He said, “It is finished!” And bowing His head, He gave up His spirit.
Much the same comparison.
Regards Tony