I don’t know if I’d call that masterful. I think usually politicians like to keep arresting people for actual crimes out of the realm of the tit-for-tat squabbling. Remember how shocked everyone was at the “Lock her up” chants, saying “In America we don’t jail our political opponents.” The thing is, that was true even when political opponents were guilty of crimes. Trump and probably many of the current administration have real crimes to be charged with. I’d think they’d want to keep up the “we don’t arrest you, you don’t arrest us” rule.
But I guess if Trump has no plans to ever leave office then there is nothing to worry about.