Twisted Treeline and the Tragedy that is Stealth

Am I the only one that feels like stealth champs have been neutered heavily by the surplus of vision-granting items? Let's first look at the ways to overcome stealth -The Hextech Sweeper Trinket. It's free. It has a 60 second cooldown according to mobafire (but that might be off, feels a bit longer in-game). And it grants a rather large area-covering mist that last for 5 seconds. Enemies and traps who enter the mist receive a 3 second debuff that reveals them and negates stealth. -Twin Shadows. 2400 gold. 80 AP. 10% CDR. +6% MS. Not a great item, but its active works wonders on a small map, and its passive makes Teemo's shrooms useless. As much as I hate the little furry bastard like everyone else, this item, combined with the Sweeper trinket, is a slap in the face to Teemo players. -Lightbringer. 2280 gold. 30 AD. 30% crit chance. The passive bleed isn't anything special, more of an added perk. However it has an identical active to the Sweeper trinket. This is kind of a lame overlap and seems like lazy game design to me, but we are talking about Twisted Treeline, so let's move on... Lastly... -Oracle's Extract. 250 gold. Grants stealth detection for 5 whole minutes or until death. This is the nail in the coffin. It's cheap. It's effective, especially with all the tanky champs being played right now. And 5 minutes is a huge chunk of time on Twisted Treeline. I don't see why this item is too powerful for Summoner's Rift, but fine on TT.

IMO, Oracle's Extract should be removed, and/or the Sweeper Trinket should be a bush-checking tool that doesn't reveal stealth. As it stands now, any aware player can destroy a Shaco, Talon, or Teemo with one press of their '4' key, all without spending any gold.

PS - I shameless copy pasta'd this from my reddit post. I know Riot doesn't give a shit about their older maps, but I'd honestly like to get people's opinions on this. Would stealth champs be too powerful if not for this surplus in vision-granting items? Or did Riot just go overboard? What would you do to change this?

Good luck out there, fellow 3v3ers. From your friendly neighborhood AP Shaco jungler