Passing the entity object/ID/URL into the component

I think the tokens road is the my preferred, but I could go both ways.

Ran into the same problem, needed the URL of the entity when using the display.

As a workaround, you could still add a field to host those values on the node (hide them in the node form) and use hook_node_view to alter the fields values and set the required values (the hook has access to the node entity).

But I’m agree, it would be great to have those values available out of the box. As well, it would be a good idea to allow pseudo fields to be used in the SDC display mapping.