Yeah I noticed that as well when I heard that there was a 5v5 I was like yes finally, but after a few matches I was getting frustrated with people because they have no idea how to use the 3 lane map. In league it's not really in paper but people have an understanding; the top lane is melee like Jule, middle lane is crystal and ability users like Skarf, and bottom is your carry like Saw or Skye. You have 1 or 2 junglers and a support, often helping out top or bottom.