So, I'm not going to argue about wether Ahri is too strong in SoloQ and needs nerfs or not. She probably is and will therefore get nerfed at some point. Thats fine, I'm kinda waiting for that for half a year now.
I just want to say, that I really don't like the "LCS"-Argument. The biggest reason that Ahri is coming back is not because shes suddenly super strong but because basically every single strong Midlane-Champion got nerfed over the last 6-9 months. Started with Azir who is now really weak, Viktor was nerfed several times, all the mages from the mid year update (Vladimir, Cassio, Syndra, Malzahar) are nerfed, Lissandra got nerfed, Taliyah after her short dominant phase nerfed, the Assassins from the Assassin Update (Katarina, Leblanc) got nerfed out of pro play (not yet sure about LB but she most likely will atleast no longer be pick-ban), Corki got nerfed, Jayce nerfed, Ryze nerfed, Syndra nerfed and I probably still forgot someone to mention.
So, what is actually left? Orianna is the only strong champ that didn't get nerfed, everything els are basically champs that are either Assassins and therefore only situationally viable for Pro-Play (like Zed, Talon, Ekko, Fizz, Kassadin) since they require certain playstyles and teamcomps or champs that don't really work in Pro-Play (stuff like Annie and Karthus).
So it's not really a suprise that Ahri is beeing played since she is one of the very few champs left that didn't get nerfed, that is a fine blind pick since she can survive almost every lane and that has atleast decent-good waveclear.
If you nerf half of the midlane champion pool, some of them to the point where they are no longer really viable (hello Azir) AND introduce a 10 Ban System it shouldn't be a surprise that a champ like Ahri that was considered not strong enough since she didn't really do anything good enough to pick her over something else is becoming more and more of a priority everytime another champ gets nerfed.
I have no doubt that Riot will nerf her, thats fine, but I really start to dislike this way of balancing. They are nerfing and nerfing and nerfing and everytime a champ like Corki falls out of the meta something else has to take it's place which then gets nerfed too, and something else takes their place until they get nerfed. Give it another half a year and we will have nerfed every single Midlaner until we are back to the starting point... I'd really wish they would start to buff some of the underperforming champs instead of just nerfing everything. It doesn't always have to be big stuff but just some little things like a bit base dmg, Mana-costs or CD changes to champs like Lissandra, Azir, Lux etc. that are too weak right now..