I almost don't see what's wrong with it because the hatchery obviously kills the chicks because they don't need them so instead they use them for meat.
It's not like there going to spend millions to euthanize or find a 'nice' way to kill them. It's been like this for years. As long as their not going out of their way at the hatchery to cause pain and suffering to these chicks for fun or whatever, it's business.
There just using this shock footage to help in there fight against cruelty to animals in which these people are probably vegetarians or PETA.