The basic premise of the diet makes sense to me as a lifestyle change.
Exactly you are correct! Primal is about a lifestyle change away from the SAD diet we are/were accustomed to.
Primal goes back before we started eating grains, before we started eating mostly high carbohydrates, before we knew what processing meant.
If you don't believe in the Grok theory that's alright. Think of it as Your Daily Apple
Currently my typical diet consists of beans, meat, veggies, fresh vegetable juice 4 days a week and I cheat on Saturday.
The major difference is cutting out the beans, and fruit juice.
The other difference is the amount of carbohydrates you consume for the best results I go below 50grams a day.
Some might say they have better results at below 100grams a day.
We are eating what our bodies were designed to eat, that doesn't mean we all eat the same though.
We keep all the unnecessary toxins away from our bodies.