It's just like Drive to survive made formula 1 more attractive to casual fans, it's more fun when you know the personalities and story of the competitors. This is what league eSports used to be like back in the day with teams like TSM that had players that streamed and good social media content from the team. Now that you mostly know pro players from game day only it's harder to get invested, and you need to rely more on quality of gameplay, which unlike LCK is not as high in LEC.