I have always been mixed on the idea.
On one hand, I like the idea of pooping dinosaurs as it finalizes them as animals to take care of, and a reference to the first movie that had a triceratops dropping as a major scene to discover the cause of her sickness. And gameplay options could be introduced such as use of dino droppings for compost for the plant feeder/greenhouse to raise their effects and lower costs, and a potential means of another power source if poop could be gathered for power or cost option, something to use besides the power stations.
On the other hand.... its poop. It will be weird if we have these large exhibits with 30 gallimimus running around. Does that mean that there will be 30 droppings in an exhibit at a time? Likewise, it will be weird to see some dinosaurs actually poop. Do they just stand still and a poop piles up behind them? Or will we see a "pooping animation" where the dinosaur lift its tail and a poop comes out with sound effect.
I guess it depends on how the execution is, if we could get destructive vehicles, decorations, and aerial creatures, I could see poop as an option. I am open to it, as long as it isn’t too distracting haha