Is the New Fiora a Dead Fiora?

I've gained mastery 5 with Fiora and then some. She was such a fun champ to play. All of her abilities had meaning and mattered for all fights, solo, duo, trio, you name it. But now with the overhaul, Fiora can't even take on two champs that have low health. Why? Cause all of her abilities are single target and she mainly relies on auto attacks with no consistent stun to help. Her new passive is a double bladed dagger meaning they now where you're gonna try and go and can prepare for it and keep that taunting extra damage recital away from you. Plus now she has no sustain so she can't stay in lane as long anymore so sorry guys no Tiamat for you on first back. Yeah her ult is awesome for that heal and insane damage...if they don't run into a minion wave to creep block you and get away or to just simply flash away. 5v5 team fights for her are impossible now that her ult is focused on one person and that she actually has to walk into the fray to do something isn't something she's good at. Never has been and now its worse. Other than being good in a fight against one champ or split pushing she's practically worthless. If someone else knows of a way to prove everything I said wrong do so. I don't want to have to lose my favorite top champ because of this bs overhaul.