Sort of. It seems to me though that once you've missed coins from many sources in various ways 90+ times then the coins are distributed in parts to many end rec

Sort of. It seems to me though that once you've missed coins from many sources in various ways 90+ times then the coins are distributed in parts to many end recipients its then very hard to to say if some fraction of a coin came had any one source. If I were designing a way to launder cryptocoins that may or may not have a questionable source I think this is pretty much what I'd come up with.