Why is it ok for Annie to be able to 100-0 you while stunned?

Disclaimer: I'm not raging, I'm not pissed, just honestly curious. Annie mains, you can chill.

We live in a period in which everything in League is about Clarity and Counter Play. Taric's stun got reworked beucase it was a point and click stun (just like Sion's). Most impactful abilities have a meaninful delay or require certain conditions ( ult delay, & ults forcing them to be in melee range to be of any use).

Yet, even on this era, we have . Who can simply point and click to deal a huge amount of AoE damage while also stunning everyone caught in the radius.

Her counterplay right now is "Stay out of her range or you die without any chance of retaliation".

Having things like these is what granted the entire assassin class a full rework in which they plan to increase the time an assassin takes to kill a target, as well as increasing the counterplay to their burst. Yet Annie exists.

They removed & silences because it denied their oponents a chance to fight back. Yet is allowed to have an AoE ranged instant cast Stun that deals loads of damage.

The counter play aspect of Annie is "Stay out of her range". The same could be said for most assassins. If you stay out of Talon's or Zed's gap closer range, you can out play them. Yet they are in for a rework. Even though they have much more counterplay once they get to you than an Annie.

So my question is: why is allowed to have such an oppressive kit without a single word of a rework coming from Riot?

EDIT: It seems like some people think I think assassins having a silence was fine or somethingn along those lines. For the sake of clarity, I'll compare Annie to burst mages now, so I can give a clearer example of what I mean.

Being able to 100-0 someone is fine.

So let's take Brand and Veigar as examples. Both of them are capable of 100-0 a squishy target while they are stunned. However, they both offer meaningful counterplay.

has 905 Base damage + 195% AP (not taking into account his passive)

has 855 base damage + 235% AP

has 870 base damage + 230% AP (without taking into account the DoT around Tibbers)

The damage is similar, and they all share the ability to stun their target. But how the stun works is vastly different:

Brand needs to land his Q, a skill shot, at a target who's been recently affected by his other abilities. This can be dodged or blocked by any friendly or neutral unity.

Veigar's E is telegraphed and, despite covering a large area, it is not hard to avoid the stun, making his other abilities harder to land and downright impacting his overall damage.

Annie's stun is shown to be up by the bar under her mana. She can apply it to a single target via her Q, which can't be blocked or dodged or to a large area with either her W or her Ult, which are instant cast AoE spells that can't be blocked or dodged.

The problem is not to 100-0 someone. The problem is not to be able to stun someone while you 100-0 them. The problem is to be able to stun them without offering any real counterplay except "Don't get close".

Yes, there is clarity to her stun. But sadly, no. There is no real counterplay to it.

EDIT 2: I'm not saying Annie is OP. I'm not saying that she needs a nerf. I'm saying that given Riot's current philosophy of clarity and counter play, her kit is unhealthy and could use some changes.