Well, guess what Forest has that 7dtd doesn't. That's right, food spoilage. You can try and hunt as many animals as you want, but:
1. You can only carry so much meat in your inventory.
2. That meat spoils if you don't cook and eat it.
What does this mean in terms of gameplay? That if you aren't careful and decide to explore a cave, for example, you will starve to death... Or kill and eat some cannibals.
So, The Forest presents a survival system that is actually threatening to the player. Whether if you find the end result fun or not, I think that's the minimum a hunger/thirst system should present, don't you think? Otherwise, what's the use of it? You can starve to death or die of thirst if you aren't careful. That's just not the case in 7dtd Singleplayer, considering the abundance of food that you can hold on to forever, and the little consequences of eating bad food.
But yeah, I think the point has been made. Let's hope the hunger and thirst aspects get balanced.