It's a LA culture problem. Worked Europe, china, and north American league scenes - the NA one has a huge issue with inflated self and laziness compared to the other regions. Until the esports scene moves out of LA, it'll continue to fail.
Why practice when you can get high and eat takeout? Why push yourself when grifters blow smoke up your ass because it's the town of egos and bullshit sold to make money with minimal effort or work? The culture takes talent and kills it for greed.
Has nothing to do with NA born and everything to do with that city and the personality types it enables and habits it produces in that scene.
EDIT: to be clear, I'm not against work/life balance and think a lot of habits in esports are unhealthy and problematic/abusive to the players. Unfortunately, in the market you're competing against very unhealthy habits and at that level, the margins for error are ripped open in comparisons. But I also think the LA culture in esports needs a big reality check and their blank check books taken away because they're fucking the entire system.