Worlds is basically LCK
Whats the point in calling it otherwise? The Koreans play it the highest level. The Koreans are funded by their companies so that they do not require to stream to get money, so they can train all day long (especially SKT) Ever since Korea had its own region (2013) they have dominated. The only teams that make it to the finals and semi finals just had lucky groups (like H2K this year for example).
Honestly i think that there should be a worlds for all regions except Korea and the finalsts (1st and 2nd place) can participate in LCK to atleast get the honor of getting 4th place there.... AT BEST. LCK should be after worlds. You know it's true it was the same for Starcraft (may that wonderful game rest in peace...)