Wrong! What makes dragons op are their amazing stats, making them amazing wallbreakers while retaining their bulk, with few weaknesses. Fairies grant them one notable weakness, therefore nerfing them (This has not to do with outrage itself). What makes dragons op are their amazing coverage, which again fariies nerf to the point of making them replace one of those coverage moves. What makes dragons op is not outrage op, but stuff like draco meteor also, which fairies just take like it was nothing. Outrage, however, its a double edged sword. You can argue fairies nerfed outrage but in fact, fairies made outrage lose its most exploitable weakness, which is the lock down condition.
The flawed argument I see here is: "Gamefreak knew outrage was op, therefore they created fairies" No, gamefreak knew dragons´s versatlity was op, and there they created fairies. If they wanted to target outrage, they wouldn´t remove the one thing that makes it not op (Lock down conditions)
If you are concerned about outrage spam, then fairies doesnt stop it a little. Steels do, but those we already have here.
Also, @suigin if you wanna make an argument over why heatran doesnt stop volca cause hp ground, you shouldnt mention mantine cause hp electric is a thing too.