That's a Rockstar issue, and it's getting old. You got so many things you can do, but 90% of it isn't essential, which makes it feel pointless. If they really want to make an RPG like experience, they really gotta up their RPG game. I found the same problem with the original RDR. It introduces all this shit you can do, like hunt and trade, pick flowers, buy medicine, yada, yada, but none of it is essential at all. It's all inconsequential. You can buy medicine, but what's the point if you can just duck behind a rock and regain your health? You can buy an assortment of guns, but every single enemy in the game can be beaten with a pistol. You can hunt for furs and trade them for cash, but you don't ever need cash, as the game gives plenty to you through missions. The list goes on and on.
These factors ultimately make Rockstar games burn out quickly. They always give off a great first impression, but as time goes on, you start to notice just how pointless a lot of the stuff in their games are. It doesn't make them bad games, they're just not as deep as they first appear, which really hurts replayability. Their games seriously lack a sense of progression for the player.