Hello,
I've seen Peter's collection of plants, and thus would take what he says seriously. Nobody knows everything about everything, and he, like everyone, can make mistakes. But I've found his book to be of incredible help, and his vft's look fabulous in person.
Having said that, I would still go find a bug and give it to the vft. I took special delight the other night in killing a mosquito and giving it to a hungry trap. They don't need that much in the way of bugs. In other words, you don't need to feed every trap. If one trap has a bug at any given time, that's plenty.
Capslock