Considering the chicks don't know what's coming, it's probably not a terrible way to go. It's gruesome, but it's over in an instant. Factory farming in general is a horror show, and this is one of the least inhumane ways animals are killed for profit.
My brother in Christ they are literally put through a meat grinder alive. Put a human through a meat grinder that’s 10x bigger than your body while conscious, anyone gonna say that person died peacefully?
Not peacefully, no. But instantaneous death beats a lot of the other variations of unconscionable suffering visited upon factory farm animals.
A human would be aware of what is happening, and the size difference would mean you would need a much larger machine than that to instantaneously destroy an entire person. But if you had to choose between instantaneous obliteration and a slow, torturous existence, some people might actually choose the instant death.