The Trump administration largely doesn't trust the employees and infrastructure which it oversees. Not only did career government employees sabotage administration priorities throughout Trump's first four years, some of the government devices provided to the administration were used against it during the "Russia collusion" investigations [1]. Based on this experience, the administration rejected the government devices offered by the GSA the second time around [2]. Because of this deep distrust, we also have the "anti-FBI guy" in charge of the FBI, the "anti-IC" gal in charge of the intelligence community, the "anti-FDA" guy in charge of the HHS and FDA, etc. I wish it weren't this way, but sow the wind and reap the whirlwind, I guess.
I think that's a very understandable response seeing as they colluded with Russia, serve their aims, and have every reason to worry that their continued efforts to serve Russia and undermine America will cause American government employees to be upset with them.
It would be mighty silly of them NOT to take precautions against their efforts being undermined. Of course this effort of theirs will face attempts to undermine it: it's entirely hostile effort on every level, obviously in service of a hostile foreign power.
Why would they trust they won't be resisted? Not everybody is foolish.
[1] https://www.hsgac.senate.gov/wp-content/uploads/imo/media/do...
[2] https://www.cbsnews.com/news/trump-team-transition-agreement...