@Riot Lore inconsistency?

Riot said that they're going to make short lore entries as a bio for champions on the client and write the full backstory on the champion page on the website ... and then they give Sion a huge lore on the client??? Am I missing something? Was Riot too lazy to write lore for the Shuriman event? Will riot replace Sion's lore with a short bio? Will Riot ever write the full lore for the shuriman champions? I'd like a Red to answer please.