The short answer is no, sadly. On the contrary, the response of the Burundian government to the UN investigation team's report has been, once again, a categorical denial of the gravity of the human rights crisis in the country.
You may have followed the intervention of the Burundian minister for human rights in Geneva, who bluntly rejected the UN report, while the foreign minister in New York, at the UN, on the one hand affirmed the government's commitment to human rights and then proceeded to dismiss and try to discredit international reports by the UN and others. That has, regrettably, become the typical response.
You mentioned the incident of the Burundian delegation not turning up for the second part of the review by the committee against torture. I happened to be there when that was happening in Geneva in August. It was really shocking. It's apparently the first time in the committee's history that it has happened. It's happened that other countries have entirely boycotted the process, but in this case the government delegation, led by the minister of justice, came for the first part, delivered the opening statement, and then simply didn't turn up to answer the questions.
That gives you an idea of the challenge in engaging the government in a meaningful discussion about human rights.