At the time of this conversation, early February 2014, their enemy Viktor Yanukovych was still president. The leaked recording proved that the US and its Kiev embassy were actively involved in a regime change operation. The composition of the post-Maidan government corresponded exactly with US plans.
What few people knew at the time was that such levels of control over the composition of foreign governments had become standard practice for US embassies all over the world. As I could see on my very numerous travels around the Balkans in the late 1990s and early 2000s, the US ambassador was treated by the political class and the media in those countries not as the officially accredited representative of a foreign government but instead as an imperial governor whose pronunciamentos were more important than those of the national government.