This is one of the reasons I don't like Minecraft as much as other games.
As in MOBA's, or MMORPG's, ping doesn't affect performance THAT much.
Yes, in League you may be freezing sometimes or lagging, but that doesn't give you an actual advantage because you're not ghosting, just having delayed commands (but in MC if you're lagging you're most likely going to be a bit untargettable). In MMORPG's you just don't feel like you're lagging, and if you are having huge lag spikes, again it doesn't give you an advantage like in MC where sometimes you can be untargettable.
I'm sorry if this was hard to understand as I don't exactly know how to describe this.
i.e. In Minecraft if you're lagging, you will end up ghosting and teleporting around, sometimes making the other players not be able to attack you, and sometimes you might get hits on them too.
In League or MMORPG's, this doesn't happen, clearly because of the way this games are made. They're not FPS' so you can't really have an advantage by lagging, or have an advantage by having a good ping. Yes, you have faster responses from the game, but everyone has a chance (I play on 80-90 ping stable on EUW and honestly, I can even do Kha Zix double jumps (E-Q-E)