tentative katarina changes and my opinion on the ahri changes

so i recently read on surrender at 20 the tentative katarina nerfs and i thought they were a bit too much.katarinas job in league of legends is too deal dmg, its the only thing she does since she lacks cc and is super squishy and since the removal of dfg and the dmg reduction on her q, the absolute obliteration of shunpos dmg and the pathetic ap ratios on her w, katarina is going to become useless or really hard to play since players are gonna have to build ad in order do any dmg early game (w will become a primary source of dmg) and if the player build ad, shes gonna have to sacrifice her ap which is what needs in order to do dmg with her ult. katarina cannot rely on her w in order to deal dmg. she has alot of counter picks and the only advantage she has against them is her mobility and the fact that alot of her counters are squishy but if w becomes a main source of dmg, katarina will have to walk up to enemies and risk getting cc'd which makes her even more vulnerable than she already is. i understand that you intended for katarina to rely on shunpo much more than she does now in order to deal dmg with w and shunpo out unharmed but sometimes shunpoing onto an enemy can be a terrible mistake for katarina (shunpoing to diana,lissandra,orianna sometimes and the list goes on, could result in death). also not that long ago you nerfed the ap ratios on her ult and the cd, it wasnt a big nerf but it was really impactful since if katarina did not kill the enemy with her ultimate, it had a relatively long cd (for an assassin, compared to assassins with really short cd's on their ults) leaving her with not much to do but farm and wait for a gank. so these nerfs that you planned for kat are going to destroy her. on a different note, the ahri changes seemed a little stupid since the reason of her changes was the removal of dfg but you still removed the dmg amplification of charm. the right thing to do would be to increase the ap ratios on foxfire or maybe remove the dmg reduction foxfire gets when hitting the same enemy. also increasing the ap ration on her ult would really help since she uses her ult more as an execute when she hits charm. im not very good at explaing my self so i hope you understand what i meant.