Again, I'm not protesting that the guy exists, I'm not even saying this is a bad plot development! Hopeless Boss Fights are as much a part of storytelling as generally being heroic is! (As long as they don't just bring the plot to a hard stop anyway, as would him actually killing us would, you need to foreshadow an actual 'You Might Die here' event, and this was basically a side-quest that escalated out of fucking nowhere from a narrative perspective, even if it makes sense if you step back and look at the macro picture)
As I keep saying, my big protest is that the existence of Twists that effectively go "Reality Ensues", goes against the themes of Twists and Norse Cultivation in general. The guy's already stacked enough for a dude who's not old enough to look visibly aged, that he has a Twist that also goes "BTW I'm stronger against people who are weaker than me in a way that is literally the exact opposite of your 'I'm stronger against people who are my superior' " is just, well, 'Twisting the Knife' from a meta standpoint. The guy being here isn't the problem, it's him setting a precedent that all but states "You literally cannot win because the entrenched interests will inevitably have magic that lets them directly counter the things that let you jump up age brackets, and the entrenched interests will always be older and more experienced than you are, with complete bullshit that's paid for by their patrons to ensure the boot is always on your neck."
Which is why I was mollified by the declaration that Punching-Down wasn't going to happen again.