"Everyone" can reasonably be understood to only apply to "people/animals like those present here"
If we're pedantic on the phrasing, the wolf could have already satisfied the demand by keeping a meat-based diet that simply excluded hedgehogs. Then he wouldn't eat everyone, just those who aren't a hedgehog. But the spirit of the complaint was clearly "everyone here is running away because they are personally afraid of being eaten". Which only included mammals and maybe some birds
If we're pedantic on the phrasing, the wolf could have already satisfied the demand by keeping a meat-based diet that simply excluded hedgehogs. Then he wouldn't eat everyone, just those who aren't a hedgehog. But the spirit of the complaint was clearly "everyone here is running away because they are personally afraid of being eaten". Which only included mammals and maybe some birds