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.
At least where I worked (and this was in accordance with laws, so all the hatcheries under this very large company umbrella did the same), they were drowned in ice cold water. Shock from cold then drowning. Then shipped somewhere to be ground into food for mink.
Not ideal, but not ground up alive, either. Maybe that’s true in some places, but ima need a looooooot more sources than a random YouTube video on that “usually”.