This event was more fun when it was standard. I don't think it's going to be very popular as a legacy event but it's not terrible. It's at least worth running once in a while for players can get Kaldheim packs if there's not a better alternative for doing that.
If you've got a date scheduled for when it's going to run next please prioritize fixing the Cosmos Charger bug before then. It's not that uncommon for two players to want to play with Cosmos Charger on the right node.https://forums.d3go.com/discussion/86681/infinite-loop-with-cosmos-charger-investigating#latest
Also please consider reducing the charges per node from 6 down to 4. 18 charges makes the event a bit long. A total of 12 charges would bring it in line with the typical number for a coalition event, which as far as I'm aware is a number that most players are happy with.