I’m the one who stands waiting patiently for someone from the RCC to give a sensible answer to the simple question: Why Paul? If Peter and the 11 were given the great commission from Christ, and understood plainly what they were to do (and they did), why does Paul claim in Rom. 11:13 that he is the Apostle to the Gentiles (and he was, as given to him by direct revelation from the risen Christ). It’s just a simple question that has yet to be answered.
Why not ask your fellow sola scriptura believers if they believe it is wrong to receive water baptism in obedience to what is called "The Great Commission"? Don't you believe it is wrong to do so?