Can we change the way stealth works pls?

Hi i main shaco, and i've also played a bit of talon and a good amount of twitch and rengar and its incredibly frustrating to me when someone spends 250 gold to upgrade red and suddenly i cant teamfight or fight much anything. I get renegaded to split pushing and sent cowering because riot gives out an item that completely counters 1 or sometimes multiple abilities of my champ. I read a rioters post in the urf q&a saying how a red trinket invalidates shaco, and its true. Yet when i read people talking about shaco they demand nerfs.

So getting back on topic i was thinking we could some how change the way stealth is handled, pink ward and oracles should stay simply because there a good way to counter vision and I think thats perfect for them. What i don't agree with is a qss level amount of counter being packed into a 250 gold item. Perhaps we could make all stealthed champs sort of have a rengar like effect where everyone is aware they are there but can't target them or see them, perhaps even giving it a hotter or colder system introducing some strategy beyond just hitting the 4 button and killing the poor son of a gun that wanted to stealth. It probably isn't perfect, heck it might be worse but I really would love to see some more dept to countering a stealth champ then just "Oh i see your (insert stealth champ here) i'll just buy pink wards till 9 then upgrde my red trinket so i don't have to let you play anymore."