I agree; for the vast majority of people, eating is very much NOT a chore (which is why obesity is such a big problem).
In any case, the ‘food pill’ thing is an impossible dream; food is bulky because it contains the stuff our bodies need; beyond a certain point, reducing the bulk just makes it less than we would need to survive.
Even if we managed to eliminate the need for dietary fibre, I’d WAG that, using the most energy-dense foods possible, you’re still looking at two cupfulls of pills per day at least. - swallowing that lot is going to be far more unpleasant a chore than eating a double cheeseburger, side salad and shake.