This should have been a killer feature and much more useful. I find the entire Blade component implementation really disappointing and super clunky to use.
Single-file components would have been the way to go here. I know you can do 'anonymous' components but you lose a lot of the extras when taking that path.
If we had to keep multi-file components, there needs to be much more flexibility when it comes to their location. Half the component is in /resources/Components, the other half in App/Views? Without anyway to change them? Constantly jumping back and forth is really annoying.
Finally, all the extra syntax and know-how with merged attributes is also just meh. You have to reference the docs every-time you use it.