Although the little puppet jumped very high, Yu Sheng was actually serious.
The experience came from the process of swallowing the Hunger Entity back then, as well as the devouring and fusion feeling when directly contacting the "Deep Layer" of the Hunger Entity.
He knew that the things he "consumed" would be devoured and fused with his essence, which was more effective and faster than any sealing or transferring measures. If the Angel Umbilical Cord really triggered the early activation of "Anka Aela", throwing it out through a Door-opening might not be able to sever its connection with the "main body"—but swallowing it would.
