o not at all, Ahri vs Zed is more skill based. Favoring a skilled zed. But if Ahri is legit she has more than enough potential to capitilize on zed's mistakes, outplay him and secure the kill. Especially in your elo. Early laning pre 6 you can AA harass a lot, and whittle him down with Q. When there is a clear open shot Charm flash W Q AA ignite will be more than enough to kill him lvl 3-5. Be mindful to dodge his harass as well.
Post 6 zed, if zed just decides to all in, A skilled Ahri will charm him when she masters her timings this gif is faker.
https://giphy.com/gifs/AZTMyrMaZCgN2
Here Zed tries to just all in Ahri under tower, she ults immediately to safety, then as he pops up behind her charms Zed with a follow up AA Q ignite. He dies to tower shot DMG as well.
There are many clips of videos similar to this one, where Ahri capitalizes on Zed's over aggressive mistakes. But takes far too much time to gif them. And most Ahri outplays if not all of the outplays are usually done by Ahri mains or skilled players. I've seen so many people think Ahri is good vs Zed and die before lvl 6 1v1 vs a Skilled zed or died post 6 because they point blank dont know how to charm or missed it all together and didn't use flash or ult wisely to dodge his Q or E.
So in the end, practice goes along way. This isn't a match up you can just pick Ahri or zed into Ahri or Zed and expect to win. You have to know what your doing. At least in higher elos...