Don J. Modesto wrote:
Why was UKE attacking with one hand dead?
If you are referring to why he attacked with the lead tegatana and did not block the counter with the trailing forearm I respond simply this is how "we" do that basic form. We do not block but rather take the opportunity to learn how to move our bodies to neutralize the counter strike.
However, once folks learn how to efficiently neutralize this type of counter through body movement, they can choose to add a block/parry for added insurance.