New Lethality

To those at Riot who decided to change Armour pen to Lethality (overall big buff).

Let me start by first saying that i have no problem with lethality, it works well and is somewhat balanced, where i draw the line was in a recent match of flex where i went thresh sup. As a thresh main, i know that if you w someone, solari them, face of the mountain them and redemption them, they should have a shield around 1k+ in the late game. What i see as broken is when a zed flies in with full lethality and ults my adc. The adc then gets one shot with all my shields being used upon them, inherently as if my shields weren't there rendered useless. What i dont get is how literally by the pressing of one button my adc pops out of existance and i cant do anything to stop it.

Riot, if you actually read this, i dont want to see my adc go pop, there is literally no counterplay to what i was watching and please needs to be changed for the better.

I dont mean all this to be criticism rather just wondering how zed is possible to do that.

http://matchhistory.oce.leagueoflegends.com/en/#match-details/OC1/163866466/201478265?tab=overview

(Link to the match History) It wasnt late game but rather throughout the game.

https://www.youtube.com/watch?v=55m0OcOwvMw

(Video showing what happened) And yes i did see that the solari ran out but she still should of had enough health and shield to survive).