“Mysterious origins of Snoke”? Come on, his backstory can already be inferred from TFA.
I would read this as sarcasm from anyone else.
I do agree with changing the third paragraph to imply Kylo is tracking down a rumored threat to his rule rather than a macguffin that would allow him to destroy any unspecified threats to his rule.
Something like “Meanwhile, Supreme Leader Kylo Ren has investigated crap in Snoke’s desk drawer and rages in search of a rumored threat to his power…”