Yep, that’s the way going forward.
Since the 3D Warehouse dialog functions like other ‘Windows’ we made a decision to take a phased approach to moving the the 3D Warehouse to the Windows menu.
In SU2016, it was everywhere.
In SU2017, we dropped it from the File Menu. It’s now in the Windows Menu, Getting Started Toolbar and Warehouse Toolbar (plus being able to search 3D Warehouse from the good 'ol Components Window).