With the exception of Kog’Maw and maybe Kalista, all those champions have good alternative build paths.
I dont think you know so much about how ADCs build tbh

Has a massive synergy with BotrK due to his passive, the items suits him too well so he has been balanced around having that massive 1 item powerspike, Lucian wont drop the BotrK to start with a dogshit as first item ER, he will buy a worse BotrK because he exactly doesn't have a good alternative build path.

Neither has a good alternativa, she either gets ultrafeeded and can rush IE or she's forced to go BotrK, dont even bother about ER, it's worthless as first item.

Basically same situation as Ashe, he can only skip the BotrK in the games he gets a huge leas before the first back, on the vast majority of the games he goes BotrK and it wont change with the nerf, it will be the same but worse.

For Varus I'm just gonna say F, because he is already weak.

She's the most recent BotrK user with a build that has been discovered some months ago, as a MF main I'm gonna still play PtA and rush BotrK with the nerf because the option of going full lethality with a gutted DarkHarvest seems still worse.