Vulcan is really putting his faith in Arthur's delusions this time. They could be helping people or fighting right now, but instead they're playing dragon quest. Arthur better get a massive power boost from this.
@Kampfarsch just wants him to wallow in despair at the thought of a tragedy that's completely his own fault before he dies. I guess it's what he deserves, an unpeaceful death.
When I read the title I was afraid the party that booted him would be assholes, and I'm glad that they aren't. They just want him to be safe because the adventure is getting too dangerous for his abilities, and they're legitimately thankful for all he's done, and saddened for making him leave...
Hopefully this shows the people that make anime that people still like Zatch Bell, and that it's profitable. Hopefully Zatch bell can get the remake it deserves, like shaman king.