Why Validator passes wrong request?

There is method:

 public function index(RolesService $customServiceInstance, Request $request)
    {

        $validator = Validator::make($request->all(), [
            'email.*' => 'required|email',
            'name.*' => 'required|string'
        ]);

        if ($validator->fails()) {
            dd('wrong request');
            //throw new ValidationException($validator);
        }

     dd('good request');
}

I do POST request without body (email[], name[]), why despite this I always get

dd('good request');?

Why if ($validator->fails()) {} is false?

I send Content-Type: application/json

via Chebli Mohamed