I doubt it's that complicated, honestly (other than the actual complication of being in the world). Having the Chechen leader under the Kremlin's thumb accomplishes a couple of goals - first, it extends Putin's authoritarian reach into a region previously known for producing problems for Moscow in the recent past. Second, it helps to create a bogey man to justify some of Putin's other policies in Muslim majority country, such as his support of Assad. He can say (creating a false dichotomy, of course), "look what happens when we allow Islamists to overthrow a secular leader like Assad!" And of course Kadyrov gets to rule a country. We've seen how that sort of sponsoring of dictators actually works out in the real world, though (see, as just ONE example, Saddam Hussein).
These are the sort of choices people in powerful positions make when trying to shape the world to their desires. The right wing (in both here and Russia) has long ago decided that religious nuts with authoritarian characteristics are preferable to socialists. That is another part of the problem, people in powerful countries empowering people with nutty religious views, because at least they aren't commies.
Hope she has a great set! And here's hoping she stays safe. Has this event been threatened in anyway?