I mean i dont know how you can abuse an item for your own class, soooo.....
Tristana got nerfed and dosent even build rageblade, and her buffs were for her w doing slightly more damage, so it kinda punishes her for just saving it to jump away, and instead forces her towards more all-ins instead of shorter trades. She didnt get compensated for the range nerf, so now she has to play closer to the creep line, making her laning a lot less safe.
Twitch only got HALF of the original nerf back. You have to take into account that his e is his only trading tool, being that his w and q are just a slow and stealth/small AS steroid. His passive just barely tips base health regen too.
But wait, people like kogmaw, varus, and kai'sa actually build rageblade but arent getting buffed in compensation. This is an indirect nerf being that its a core item for them, so i cant exactly see the favoritism there, being that now its also even easier for the melee folk to stack it. Then rageblade cant stack on minions so the adc actually has to start fighting you for a bit before they can get the full effectiveness out of it.