A general is a high ranking military officer, a senior employee of the United States government, just a couple of steps in the chain of command from the President, who often has authority over thousands of people whom he has the power to order to kill people. As a senior government employee he has a personal responsibility to make the system work.
For someone at this level to have his attorney advise Congress that the General intends to hide from process servers is not just a matter of playing games, it is conduct unbecoming an officer of the United States military and should be punished accordingly. He gets his authority via the rule of law, and the authority to wage the wars he's waged from Congress. To flout that authority is a form of insubordination that threatens the Republic and cannot be tolerated.