As soon as Lin Huang returned to the Devil Hunter Star Zone, he activated the communication transfer function on his communicator and transferred it to Sword1's communicator. He also authorized access for Sword1 to enter and exit the Great Heaven Territory freely.
Furthermore, he let Sword1 know that if he received news from Death Sickle or any other important information, he could come into the Great Heaven Territory and knock on the door of the Great Heaven Palace.
After making these arrangements, Lin Huang entered the Great Heaven Palace again and went into closed-door cultivation.
As for the matter of Death Sickle's headquarters being attacked, he did not participate any further in subsequent discussions.
In reality, his presence did not really matter since Buried Heaven and the Blood Sickle members were there.
In terms of resources and connections, Death Sickle most certainly had more of them than he did.