It’s clear if you navigate the Obsidian Help notes that context-rich backlinks are possible, but require the [[backlink]] to be embedded in a suitably descriptive sentence, versus a standalone bullet/heading. Something I have to think about when organizing my own thoughts - probably a good exercise 
However, I do agree with @derekpankaew that backlinks would be so much more powerful if they incorporated folding - so we could selectively interrogate context. I would even like to see a certain amount of unfolding by default - so I can survey the landscape of thought before clicking off in a particular direction.