itemController
only wraps items when you iterate over the controller collection.
{{#each item in controller}}
{{item.coolItemControllerProperty}}
{{/each}}
It doesn't apply to any collection within the controller. If you tried to iterate the underlying model/content it wouldn't be wrapped.
{{#each item in content}}
{{item.coolItemControllerProperty}} // undefined
{{/each}}
{{#each item in model}}
{{item.coolItemControllerProperty}} // undefined
{{/each}}
fortunately you can specify an itemController
in your template for these situations.
{{#each item in status1 itemController='some-item'}}
{{item.coolItemControllerProperty}}
{{/each}}