Quinn suggestion

Been playing Quinn a little here and there lately, and i noticed something that really sorta confused me about her kit.

When playing as Quinn vs champions like and im sure not limited to Wukong and Shaco if you use your w on them to reveal them, they can use their stealth abilities and become invisible even tho they are "marked" by the ability.. what gives riot? Its not really a reveal if use of a stealth ability afterwards just negates the ability.

Now i understand that "sight" and "true sight" are different (for those that don't know the difference twisted fate's ult is an example of "true sight" and Quinn's w is "sight")

Correct me if im wrong but Its kinda silly that you can mark a champion and not be able to see them at all... i feel like they should at least have the shimmer effect to some degree..