in my mind at least, it's obvious that Paragons are meant to be directly analogous to Totems.
Pretty much. But it has never been explicitly stated, so in theory an author could still go ahead and say "well, this is where the analogy ends, each Paragon is an actual, singular entity"
BTW,a tidbit I just remembered: The Berlin book mentions an NPC who was a Winternight member and managed to stay under cover. He nowadays spends his time writing malware to get back at Loki. Does not sound like he causes more havoc than the average script kiddie, but it shows than some people survived the purge.
His matrix proficiency does not really fit WN's ideology (which he seems to believe in, unlike Ex Pacis), but terror groups can make strange bedfellows if it serves their needs...