Nope. Double checked the parts diagram and list. Didn't see anything in the illustrations and checking the the parts callout, didn't find anything listed in "Qty 2" that even remotely resembled the "mystery parts."
Check on the set up section and cautionary regarding the power cord and nothing mentioned there.
They probably had a couple of parts left over from the last batch of motorcycle stands they packaged and decided it was easier to gift them than to store them
Still seems a damn nice saw for money. Time will tell.
It'd rather find these "accessories" than a couple of spare allen set screws, etc.