Change the "magic" plugin config key for the search index?

In \Drupal\search_api\Plugin\IndexPluginBase::__construct(), we currently have the following comment:

    // @todo Change key to, e.g., '*index', to avoid potential collisions.
    if (!empty($configuration['index']) && $configuration['index'] instanceof IndexInterface) {
      $this->setIndex($configuration['index']);
      unset($configuration['index']);
    }

Before we release a Beta version, we should decide whether we actually want to do this. I'd say it's probably a good idea – or can anyone think of a reason against it?