Ask Prigozhin whether that shelling actually happened. You swallowed Russian propaganda hook, line, and sinker.
OHCHR estimates that between mid-April 2014 and 31 May 2016, at least 9,404 people, of which up to 2,000 are civilians, have been killed as a result of the conflict. The vast majority of civilian casualties, recorded on the territories controlled by the Government of Ukraine and on those controlled by armed groups, were caused by the indiscriminate shelling of residential areas, in violation of the international humanitarian law principle of distinction.
Na better believe Prigozhin, that guy never told a lie or said anything that was totally wrong.
What do you believe your source to say, exactly? That Ukraine shelled indiscriminately? If so, you should read it again.
Yes it says that exactly, unless you think the “armed groups” shelled themselves.