No Trinkets to Deal with Stealth Champions is Very Frustrating

In case you didn't know, the new oracles lens does not reveal stealthed champions (it just shows you that they are there but you can't attack them or anything). Since the pink ward dropper trinket has also been removed, the only way to attack/use targeted abilities on stealthed champions is pink wards. That's fineish in the mid game, but late game when everyone is out of item slots it really sucks to make you support lose an entire item to deal with the enemy vayne (or shaco/rengar/twitch/talon, etc). It feel bad to be trying to tank the enemy team as leona but giving up one item slot to sighstone and another for a pink ward leaving me pretty easily killed. Or even in the mid game when I have a giants belt and I want to build a warden's mail but I need to use the slot for a pink ward.