Removing turn times was a horrible concept
Turn times are what historically have balanced melee and ranged combat
Creating a game with instant turn times, forced Riot to balance melee vs ranged through a perpetual arms race of equipping everyone with gapclosers, blinks, dashes for "muh gameplay".
Rather than brainstorming ideas of creating conceptual gap closers and conceptual edges that melee could have to close the gap or ranged could have to stay at a range, you easily slap gap closers onto everyone, and mobility creep has had terrible consequences onto the game.