As Holt demonstrates, not everyone chooses the more enjoyable and less moral choice. (For Holt there isn't a moral reason, he's just disinterested, but nonetheless makes the same choice of not choosing to enjoy food.)

At the end of the day, it's why there are so many so viable vegan alternatives nowadays.

Nowadays it'd be somewhat easy to fool a non-vegan into thinking they're eating meat, occasionally at least. Trying to pull that off 20 years ago would've been impossible.