Invisibility needs...something

Since the removal of stealth wards, and people relying more heavily on Vision Wards, i have noticed a SIGNIFICANT drop in power of junglers who rely on invisibility to be successful. I was silver 4 before the reset and in the lower elo's i noticed a slight difference but not so much, but i play with diamond players alot (they got me into the game) and Eve and Shaco's ability to go invisible is almost entirely irrelevant, it seems. I know its a very powerful mechanic, which is why i think Riot made them pretty damn squishy, BUT that mechanic to a big nerf when Pink wards became the norm to place in the brushes. Has anyone else experienced this feeling or is it just me. Eve, i can understand because it her passive, and shaco's boxs as well. But Shaco's q is his main form of engage and is entirely negated by a pink...i think something need to be done because I love shaco, but i havent played him in a while because he just isnt as effective as he used to be