>>46744001And they chose to say it that way. Just like they chose to re-iterate 14 year old Japan-only material for the world in Gen VI.
They said it that way, as it's still a lot less grim than what you or I both posited they should have written. Remember, it has to retain a level of nicey-nicey, they want kids to like these shitters as well as think they're living creatures and saying "they eat underdeveloped pokémon out of eggs" doesn't really hep that aim. When they grow old enough to comprehend eggs being cradles actually means "pokémon give live birth then seal the underdeveloped pokémon within an egg-like object to finish growing", then they can have their fridge horror moment and post to r/pokémon TIL.