Since last patch we can ping any item not just actives, but why not trinkets of our allies?

So I am thinking about this a long time now and after I read the update about pinging items I thought Riot made it actually happen. They didn't. This is the first time I write something on the board, but for me it seems like a good idea to implement trinket pings.

Reason: Yes I am main support player and it really frustrates me when I have a Ruby Sightstone or Eye of the Watcher/Oasis/Equinox and still have no vision on Summoners Rift. So I press TAB and see my Jungler has a yellow trinket in the 30th minute with 2 charges and my other mates as well. I try to tell them that they can put wards themselves, but unfortunately they don't wanna do it or they aren't reading the chat. I can ping summoner spells and whether my mate is alive or showing the death timer in the chat, but I can't show them their own charges? Also I can't show them which trinket makes more sense.

I write: "Hey jungler you need red trinket!" No response. Then I ping every time when my red trinket is on cooldown and tell 'em to go the same trinket. Still no response.

Can u actually make that happen?

Also: Please update your tutorial since there is nothing about using wards / destroying wards and the value of vision!

Cheers

Cinario