If anyone is wondering why League has a pendulum type balance now
One only has to look at the years of WoW balance. It was always a pendulum. Buff something ridiculously hard, oh its op! 2 months later nerf it to the ground. 2 months later buff it back to a new op way, rinse repeat.
"But Careful," you may ask, "where would this shitty balance philosophy come from?"
Oh gee, idk. Ghostcrawler maybe?