>>32064433Their goals for the first two (catch a lot of Pokémon and catch island scan Pokémon) were ridiculously high, so they made the targets a bit lower for the next ones (trade on GTS and Battle Tree wins)
They didn't account for the fact that people generally find Trading and Battling to be less tedious to do repeatedly than catching Pokémon.
Egg hatching will probably have to be in the 50,000,000 range to be a reasonable target.