The problem I have with this view is that we have no evidence at all of a such commandment being put, in Judaism, on the same level of the first commandment (== love for YHWH above all).
Hence the fact alone that the two commandments appeared together even only on the same row makes me think that it is sufficient to raise a giant antithesis between Christianity and Judaism:
Teacher, doing what shall I obtain life?
26 But he said unto him, What is written in the law? how readest thou?
27 And he answering said,
Thou shalt love the Lord thy God from all thy heart, and from all thy soul,
and from all thy strength, and from all thy mind; and thy neighbour as thyself.
28 And he said unto him, Thou hast answered right: this do, and thou shalt live.
(Mcn 10:25-28)
Not coincidentially, "Mark" removed the reference to 'love thy neighbour as thyself" and the reason is clear: "Mark", as every Jew adorer of YHWH as supreme god, would have cried to blasphemy, otherwise, in seeing scandalously equated the first commandment with the commandment to love the neighbour:
29 “The most important one,” answered Jesus, “is this: ‘Hear, O Israel: The Lord our God, the Lord is one. 30 Love the Lord your God with all your heart and with all your soul and with all your mind and with all your strength.’ 31 The second is this: ‘Love your neighbor as yourself.’ There is no commandment greater than these.”
32 “Well said, teacher,” the man replied. “You are right in saying that God is one and there is no other but him. 33 To love him with all your heart, with all your understanding and with all your strength, and to love your neighbor as yourself is more important than all burnt offerings and sacrifices.”
34 When Jesus saw that he had answered wisely, he said to him, “You are not far from the kingdom of God.” And from then on no one dared ask him any more questions.