I'm not confused about it being a demo. I'm confused about it saying that I saved him, when I did nothing to save him.
Is it just there as a placeholder because of the fact that that's there in every route? Although you aren't the creator so I don't know that you'd know the answer to that.
The dialogue you're viewing is just placeholder stuff so thankfully it's not spoilers for how his route goes down. I've isolated what the problem is and will be patching it sometime today. Essentially, the check to see if his content is there wasn't working. It's supposed to see nothing is there and then boot you back to the title screen, but... it's not doing it. Either way, it'll be fixed by the end of the day