Perhaps eating isn't a major pleasure of life for everyone.

I'm imagining an analogous argument about exercise. Someone formulates (or claims to, anyway) a technique combining drugs and yoga that provides, in a sweatless ten minutes per week, equivalent health benefits to an hour of normal exercise per day. Some folks are horrified by the idea — they enjoy their workout, or their bicycle commute, or swimming laps; and they can't imagine that anyone would want to give up the euphoria of extended physical exertion in exchange for a bland ten-minute session.

To me, that seems like a failure of imagination. People don't all enjoy the same "pleasures of life". Some people like physical exercise; others hate it. Some people like tasty food; others don't care about it. Some people like sex; others simply lack any desire for it; still others experience the urge but find it annoying. And so on.