No, they mean the ones that actually do show animals suffering in terrible conditions or being killed on ways that cause suffering that are not uncommon and have lead to more regulations because of the terrible practices. Kind of like the police, there is plenty of terrible behavior even though not every place is as bad as the worst videos, but even if only 10% of animals suffered it would be worth bringing to everyone's attention.

And it is more likely to be the majority of animals to be perfectly honest. I am not a vegan becsuse I think that there is the possibility of humane farming practices, but do acknowledge that the food production industry's largest producers are regularly caught being cruel to animals to save a few bucks and see why someone would oppose it because the system incentivises suffering.