Don't get me wrong, I love me some Yoseikan. But the modern Yoseikan stuff bears very little resemblance to what Aikido came from and is much more of a MMA than a preservation of Daito Ryu or early Aikido.
I only referenced the Yoseikan clip to show the combative nature of Aikido. The original Aikido contain more sutemi-waza and atemi waza, which has been almost completely removed from the Aikikai organization. Yoseikan has retain a lot of the original methodologies from Aikibudo. Yes it has been modernized, but has retained the self defense methods.