Comment: agriculture as in farming?

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agriculture as in farming?

You need to answer why they would need to grow crops if their vegetable and fruit were plentiful. You also need to answer why they would practice animal husbandry if it was easier for them to just follow their food supply.
The Plains tribes didn't practice farming because they followed the buffalo herd. Nomadic people have no use to grow crops since they don't live in permanent settlements.
It's like you're going after Moses for not farming during their 40 years exile in the desert. There were reasons he didn't set up camp and farm but since no one wrote down what those humanoids were doing 1.7 years ago we don't have that luxury of what you think of as a rational explanation.
I actually think your post irrational and would love to know exactly what you are trying to prove.

If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy.
James Madison