If anyone's to blamed for the removal of T3 support items...
Blame those who instantly rushed AP or Ardent Censor & never bothered building the Sightstone itself for the whole game, especially the following:
- playing Xerath/Zoe/Veigar "support" & didn't give a fk about team survivability.
- getting ganked from the dark multiple times & still stubbornly refuse to purchase visions.
But on the bright side, support item abusers like ADC, Klepto GP & Nasus, or any Mid/Top AP champions getting Frost Queen's Claims, can now contribute to giving team vision alongside the support, so that's something.