"...you can use a bonus action on a subsequent turn of your to curse a new creature."
You're cursing the new creature, just as you did the first. Technically, it requires VSM to do it. Or, do you think it's purely psychic in nature? To state otherwise is a ruling. It's fine. It's not, however, how the spell is written.
No, it's not like the first time. You are not casting the spell again. To state otherwise is a houserule.
It's Eberron, not ebberon.
It's not high magic, it's wide magic.
And it's definitely not steampunk. The only time steam gets involved is when the fire and water elementals break loose.