Add constraint with target only works with pose mode?

look at this post:

This remembered me that when I was learning rigging, it was extremely slow to add constraints to a rig.Then I learned the Shift + Ctrl + C shortcut which saved me a lot of time and even made rigging FUN

I was looking for this shortcut in 2.8 but SURPRIZE! it only works with armatures in pose mode now. how do I use it on mesh objects or empties?
It should be added back, its a bloody important feature and need to work despite the object type:

@brecht, could you give a response?