People keep saying this, but it isn't that simple, and in the context of many discussions, simply isn't true. Frequently when people on this board refer to Disney, they're referring to Disney's brand and its associated properties. For all useful purposes, aside from a corporate or financial perspective, Disney is not Pixar. Disney properties are not Pixar properties. The brands are distinct, and different. You can see this in other companies as well. For example:
Dasani is not Coca-Cola. The Coca-Cola company may own the Dasani brand, but if you refer to Dasani as Coca-Cola then you're confusing the company with the product, or the brand. The same applies to PepsiCo and Aquafina.
Another great example off the top of my head is the Cisco acquisition of Linksys. Cisco tried to assimilate Linksys's business and re-brand their products as Cisco, and it failed miserably. Cisco realized this quickly, and shifted gears to strengthen and differentiate the Linksys brand. They're the shining example (in the tech world at least) of the importance of recognizing the success of a different and distinct brand without obfuscating it with your existing brands.
I can't even fathom how people can think Epcot and Pixar are the same brand. The creative properties are wildly different, and before The Seas with Nemo and Friends, only met in the corporate financial reports. Finding Nemo is an exceptionally strong product, and I agree that lending its strength to Epcot improved attendance to a 20 year old attraction, but quite frankly, almost any refurb as extensive as that would have improved attendance. WDI certainly has shown how they can masterfully plus an aging attraction elsewhere throughout WDW and Disneyland. There's absolutely no sense in assuming that adding Nemo to The Living Seas was the only way to do it.
Epcot is a struggling brand, we all know that. Introducing the Pixar brand only dilutes it further.