Riot on new rune: "It's more than likely that the current values are too generous for ranged"

You bet they are

Hextech Freezeray: Ranged attacks slow by 25% - 40% Melee attacks slow by 35% - 50%

10% slow difference is not nearly as enough to balance out the ranged/melee discrepancy. 10% is barely noticeable. If the values stay as they are, ranged champs will abuse the shit out of this rune. On top of all the other advantages they already have in this game