You mean there is no proof in shi'i sources about the order of verses, then maybe you are correct, but in sunni islam, there is a consensus that the order of verses are from allah. There are few authentic narrations regarding this.
Those tons of narrations are either extremely weak or fabricated. And even if it is true, it still doesn't prove that he is the imam. Rather it will prove our interpretation. Ali basically acted as a supporter or an ally by giving his ring to the beggar. When you give a ring or something to a needy, you become his supporter not his master.
1. Dumb question
2. Also a dumb question.