Riven is "squishy", and adds a lot of counterplay to her
Both statements are technically correct, but completely wrong in practice. The fact that she's squishy is damn near moot, because unless your team has 4 stuns to blow on her, she's going to get kills. Lots of kills. It doesn't even matter if she has a bad lane phase because her scaling into late game requires one item before gg. And her counterplay is a fucking joke, seeing as both her R and her passive let her just right click you and 3shot anyone without more than one hp+armor item.
I know saying riven is balanced is a long running joke, but that joke has been going on since release. Can we please for the love of god make her a mana champ. Her voice emote even fucking says she's broken. Riot acknowledged it.