Sejuani passive nerf is dumb

Sejuani is one of my favourite champions. Before the rework I was getting a decent amount of wins with her I liked her viability as tank engager who could sometimes mix in abit of damage. Then they reworked her and now tank is the only viable build as her low ap scalings are now almost completely gone.

Now as a tank shes ok, her engage is worse then the old version but until this last patch she was nice and tanky which was good enough. Now the one thing that made her tanky, a passive that gives her a 2second armour buff is being nerfed from 100 to 20 until lvl 14 she now seriously falls down.

It just doesn't make sense. They make her linear in that you can only play her tank and then the only part of her kit that makes her tanky they nerf? if there are parts of her kit that are abit toxic like the permafrost yeh they lowered the numbers on that but come on this was supposed to be the TANK rework? This nerf is super misdirected and feels like last season all over again where sejuani got nerfed because of cinder then when cinder was nerfed was just left weak.