Snapshots sort of requires one to work a certain way so that changes they make with automation and such, will translate properly back to earlier mixes. You sort of want to finish your automation first and get your mix ballparked before creating Mix Snapshots, ie, Mix Snapshots are better used when you’re at the 80-90% finished mix stage, and want to incrementally document aka Snapshot the slight difference in final refinements.
If you use Snapshots in that way,
this FR makes sense, and that is, to be able to batch export multiple Mix Snapshots in the Audio Export Window.