Why do people avoid getting better at the game?

[CaedemSanguis]

Not to mention the possibility of the dev team needing to account for the lowest common denominator of player skill, and therefore needing to basically strip jobs of the mechanics and decision-making that some players desire in order to accommodate. But that's something of a subjective issue, these days.

Casual content is made for casuals, and its therefore easy

Hardcore content is made for hardcore raiders, and its therefore very hard

???