The Punisher adds an exciting layer to every situation, so keeping him around as a wild card could easily provide a sense of unpredictability to every other series.
And who wouldn’t want to see Frank Castle and Jessica Jones knocking back some whiskey shots before getting into a gigantic bar brawl?
This location decision, which was reported by the folks at Omega Underground, feels like a smart choice when we consider how Frank relates to the other heroes and supporting characters in these shows.
He continued to have a strong bond with Karen Page on his own show, so it’s apparent that he’s not insulated from the other members of this universe, even if showrunner Steve Lightfoot wanted to keep superpowers out.