While I have no complaints about the system as is, I can say that from personal experience that it can be very difficult to keep a character going after a lot of CR drops, especially if it happens suddenly within a short span of time. I have dropped a character before for this reason so I understand the appeal of a mechanic like this.

As long as a new applicant for the same character isn't forced to play according to the narrative of a player no longer in the game, I think having a little more variety in explanations for the sudden disappearance of CR could be helpful for those who wish to take it.

I'm a little concerned about this tacking on extra work for the mod team since gods getting called away sounds like something that the mods should keep note of moving forward for potential metaplot uses and setting maintenance. It could probably be kept track of with a simple spreadsheet but I just wanted to point out that drop mechanics that aren't just a clean break from the setting can cause inconsistencies down the road if they're not kept track of.