I'm sure plenty of people here first looked at the Braille alphabet trying to catch the Regi's in Pokemon Ruby/Sapphire/Emerald. Not exactly a skill but definitely something that most people playing a visual game were unfamiliar with.
I'm fine with not being able to get all pokemon IF they make more available as time goes on. I've always felt Pokemon games came out too quickly, this is a good opportunity for them to slow down development and add more long term support to the series.