Why do 0 risk champions get kill potential?

Riot loves to talk about "counterplay" (tm), windows of opportunity (tm), and interactivity (tm).

But look at champions like Nidalee, Ahri, and Lux. Ignore their state of balance. Ignore their state of balance. I said that twice because I'm going to get some idiot who doesn't read that and says something about Lux being balanced.

These champions are incredibly safe which is fine if that's their thing. I don't mind a farm lane or whatever. But it's absurdly frustrating when they're allowed to kill you but you aren't allowed to kill them. They're allowed to outplay you, but you're not allowed to outplay them.

Take Nid for example. Her "window of opportunity" is smaller than the thermal exhaust hatch on the death star. Chosen Master Yi couldnt even hit it if he closed his eyes and believed in the force. Her playstyle: chuck spears @ 1500 range until you have enough burst in cougar to instagib them in less than 1 second. Then do a Michael Jackson 360 and moonwalk the fuck away. Where's the vulnerability Riot? Where's the interaction? There's no interaction in spear spam dodging. Eventually some will hit. There's no interaction in getting execute-bursted from a 700 range gap closer in less than 1 second. Should you catch Nid out or even significantly weaken her? Pounce, pounce, heal, heal, heal. You can't catch nid. You can't kil nid. You don't interact with nid.

Or take Ahri for example. Ahri is never at risk. She's incredibly safe but for some reason she gets great all in burst potential. What? If I cant kill her, why can she kill me? Even if you severely outplay an Ahri, you still can't kill her.

The problem is exacerbated by the fact that if you somehow do get in their face, they still escape with their 1 million safety moves. If a champ can get kills they should have to take risks and "make plays."

Even champs like Zed as safe as he is, have to get in melee range to farm and get kills. And at least there's some counterplay to zed whether you pick exhaust, zhonyas or qss. Champs like Ahri, Lux, Nidalee do not have that vulnerability. If you get in their face (supposedly a weakness of a squishy ranged mage) they CC you/escape with their superior mobility/heal/shield. They have way too many tools to get away if you do somehow catch them when they're supposedly vulnerable. And even then, at point blank Lux, Ahri, and Nid aren't necessarily even weaker. At point blank you just have a chance to hit them a couple times.... But not kill them because they get away with their idiotproof kits