What a load of horseshit. From the referenced report:
"In 2016 we began observing actors we believe to be North Korean" - key phrase "we believe".
"Now, we may be witnessing a second wave of this campaign" - "may be".
The whole article is just fishing for connections with zero ties to anything solid. Even if they did connect two dots, we can now claim that a few people doing something is the entire North Korean regime? Pppplease.