Trinkets cooldown for wards should be less?

Currently the only true source of wards is trinkets, sightstone, and zombie wards. The vision control is extremely lacking it feels like in general these days, as in the past when we were able to buy wards you'd normally see us relying heavily on that vision mapping to keep us safe, but nowadays we have a big choice of "when" and "where" to ward. Removing the jungler item that gave them ward also is keeping the rift just extremely dark.

If we have to have 3 red trinkets on the team to deal with a teemo, then we're even further reducing our options for wards on the map. Buying control wards can be an answer, but honestly it doesn't help too much when your max build or control ward limit is placed.

Maybe just reduce the charge cooldown? So that we can have more wards? more vision? or atleast let us beable to buy ward charge items similar or akin to sightstone, that don't refill. 150 gold for 3 60second wards on a midlaner wouldn't be super harmful.

I'm just feeling this darkness a bit too much these days when zac is ganking me from areas right beside where I got warded.

Also like, junglers used to ward for their laners before with the old item, now their just not warded and opting for red trinkets. Issgreat.