After being in contact with Brashmonkey it seems like they require an API update in order to implement the Spriter plugin correctly, Please help them with this. Many depend greatly on spriter for their projects, and in its current state, the workflow is impossible to work with
Current issue: re-imported spriter objects will not overrite previous objects. Instead every import creates a copy of both the animation object and its related sprites.
This is the link to Edgar's original post (brashmonkey):
(Sorry I couldn't find this post until Edgar wrote about it in the comments)
It would be more helpful to file a suggestion that actually describes what needs changing, and vote on that instead. From just this, it's not clear what needs to be done, so please collaborate with Brashmonkey if necessary to identify an actionable suggestion, file that if it's not already filed, and then vote on that.