Riot you reworked crit items admited a failure and reverted them => Now it is time to runes reforged
Your game was almost balanced despite some exceptions the game was still enjoyable. It was the accumulation of 7 years of hard work trying to balance the game.
With runes reforged you just sent to trash all those years of work.
You had to do ONE THING, ONLY ONE THING !!!
=> MAKE RUNES FREE
at beginning everyone was saying meh runes reforged are good just let them the time to balance this shit.
2 years later its still a mess... Yeah you cannot do in 2 years a process which took 7 years to do.
Moreover the game feels less fun because of the damage and because there are less options of customisation of stats and special effects (like life steal, movement speed, mana per second, Hp per second, spell vamp etc...)
You admited failure with crit items and reverted them.
Why don't you do the same with the runes/masteries system ?