The discussion between Hashem and Moshe Rabbeinu was much more than Hashem convincing Moshe that he was the right person to redeem the Jewish people from slavery.
It appears that Hashem was prepared to reveal Himself to Moshe in a much deeper way than that of the Avot. One of Moshe’s major concerns was how he was supposed to explain to the people Hashem’s nature. It was clear that Hashem could be perceived in many different ways- depending on the level of holiness of that individual.
At one point, Hashem tells Moshe to tell the people that He will be with them during this crisis and will also be with them in future times of trouble. Moshe protests and suggests that it’s better not to mention future exiles.
Rabbeinu Bechaye said that when Pharoah tells Moshe that the Jews will have to gather their own straw for bricks, Moshe is disturbed. He was really asking the age old question of צדיק ורע לו ורשע וטוב לו, why do the righteous suffer and the wicked prosper.
What we are to gain from this dialogue between Hashem and Moshe is that it is incumbent on us all to try to seek out Hashem’s ways so that we can get closer to Him. This is meant to be a major focus of our existence. As King David said קרבת אלוקים היא טוב, closeness to Hashem is a good thing.