Invisibility does not belong in a moba

Vision of the enemy is a key component of victory in this type of game. Invisibility simply lazy design for when you want to give a "stealthy" feel without the player actually having to work.

The update to invisibility was the laziest option available to the design team, and they took it in stride.

Too often they make bad changes based on the data that shows half the time the champion will be countered with AoE ground-targeted or skillshot abilities, rather than thinking about actual gameplay instead of counter-picks.

News flash, Riot, Rock-Paper-Scissors isn't a good model for a video game.