People will seriously scream that you can't assume malice when stupidity explains it, but at the same time we have Occam's razor - the simplest explanation is usually correct.
And if these people were stupid, sometimes they'd benefit the American people and harm Russian oligarchs. But the evidence shows close to 0 help for Americans, and every action they take aids or provides cover for kleptocrats here and abroad. The simplest explanation is that this is their intention.