Ah, someone who has done their research instead of blindly believing what someone else tells them!Let me see, as far as I recall Jesus baptised no-one. John the Baptist did in a river to symbolise the washing away of sins. Jesus did, according to one of the post resurrection stories, command his followers to "Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost".
Rather apocryphal given that Jesus did not claim to be the Son of God. He referred to himself as the Son of Man (happy to be corrected by more knowledgeable biblical scholars) and highly unlikely that the words 'Holy Ghost' ever came from his lips.
To claim that thousands of baptisms are invalid for such a trivial reason is to fly in the face of the words "Suffer little children, and forbid them not, to come unto me: for of such is the kingdom of heaven".
What many people don't seem to realise is that anyone can baptise a baby. It happens in hospitals when a baby's life is at risk. A bit of spit, making the sign of the cross on the forehead, and uttering the words, 'I baptise thee in the name etc'.