O Sensei, Morihei Ueshiba, gave the world his Aikido, which was beyond anyone to emulate, duplicate or to surpass, much less fully understand and appreciate. It was a one of a kind offering by a genius of martial arts, probably never to be seen or experienced again in the foreseeable future.
If it was beyond anyone to emulate, duplicate, or surpass, then I don't think it is right to say he gave anything to the world.
I am pretty disappointed by this embu. I cannot convince myself that Doshu is actually taking his uke's balance or causing them to take ukemi. He doesn't look connected at all. But without Doshu we wouldn't be talking about this, most of us would never have heard of Aikido. Certainly not if it had been left to Osensei.
I think Kisshomaru is the one who gave Aikido to the world.