Cooking, eating and cleaning up after it take time. If I can prepare a daily meal in 10 minutes, with no washing up, consume it on the go, and it turns out healthier than what I would otherwise eat (I'm no good at healthy cooking)... I don't see the drawback.

I suppose I'd still eat recreationally, at least from time to time. And on social occasions, obviously. But saving up even half an hour every day is huge.