"ScopeDefault" class returns 1 as id where 0 would be expected

[WEXO]

\Magento\Framework\App\ScopeDefault::getId() returns (int)1 where I with my Magento 1 background would expect (int)0 to be the correct result.

I have not seen this behavior trigger any bugs in the code so I would like to hear if anyone can confirm whatever the current implementation is correct or not?

 magento2/lib/internal/Magento/Framework/App/ScopeDefault.php Lines 23 to 31 in 8c7c700

     /**
      * Get scope identifier
      *
      * @return int
      */
     public function getId()
     {
         return 1;
     } 

Steps to produce

/** @var \Magento\Framework\App\ScopeDefault $scopeDefault */
$scopeDefault = \Magento\Framework\App\ObjectManager::getInstance()
    ->create(\Magento\Framework\App\ScopeInterface::class);

var_dump($scopeDefault->getId());

Expected result

int(0)

Actual result

int(1)

Note. This is a continuation of issue 12377