For medical training, Soylent has been wonderful. On emergency shifts I often won't have 10 or 20 minutes to go to the cafeteria for a meal as there are too many acute patients. I used to rely on energy bars to get me through but I much prefer Soylent. They are quicker to eat and I know that I am drinking a someone balanced meal. I usually drink about three in an eight hour shift.
You raise a great point about self reflection and Soylent. To stop cooking entirely is madness, and Soylent can enable antisocial tendencies or depression. They shouldn't brand themselves as a complete dietary replacement for food.