Why are two bundles needed to be registered instead of one?

[simPod]

Docs states:

2. Register these Bundles in your kernel (individually, but might be app/AppKernel.php)
   public function registerBundles()

{
    $bundles = [
        // Other bundles...
        new Prooph\InteropBundle\ProophInteropBundle(),
        new TomCizek\SymfonyProoph\ProophBundle(),
    ];
}

• I think registering only one bundle should register the another one.

• Also, this repository name should be symfony-prooph-bundle as it's a standard for symfony bundles and it helps it to be recognized.