My lord
Not all at once does "Jacob" cease to dominate the walk of "Israel." Compare (Genesis 35:1-10) where the walk becomes according to the new name.
Related Commentaries of Genesis 33:13
Genesis 33:13
13 And he said unto him, My lord knoweth that the children are tender, and the flocks and herds with young are with me: and if men should overdrive them one day, all the flock will die.