It's not merely 'best practice' for some hypothetical delay tactic.
This is a coordinated effort to get cases in front of SCOTUS that can gut the ability of federal agencies to do anything, especially agencies that are inconvenient to large corporations by regulating labor, environment, standards, food quality, etc.
See Project 2025 [0], which is a plan to reshape the executive branch of the U.S. federal government in the event of a Republican victory in the 2024 U.S. presidential election. The plan would perform a swift takeover of the entire executive branch under a maximalist version of the unitary executive theory — a theory proposing the president of the United States has absolute power over the executive branch. Project 2025 envisions widespread changes across the entire government, particularly with regard to economic and social policy and the role of the federal government and federal agencies.
They are taking every possible approach towards their goals, and this is just one line of attack.
[0] https://en.wikipedia.org/wiki/Project_2025