Remaping Dino's with a Mod

As I understand it when you remap dino’s with a mod pre-existing dino’s are not affected.

I’m assuming this also means if the mod is removed the dino’s that it remapped are no longer valid? I assume get cleaned up by the game server.

Is this accurate?

If so, it would seem any asset that is sourced from a mod is a high-risk item when updates can break the mods. The exception seems to be the Total Conversion mod which silently updates everything under the table.