True stuff, to be fair, LoL is quite better nowadays. The average age of players has grown with the game, I had a game with two other 30+ year olds and we were joking about it, when we got destroyed we were still cracking jokes.
Results may vary, but it definitely isn't as bad.
This isn't the developers, it's the people the developers hire to do voice acting, mo-cap, stunts, etc.