What is that quote supposed to prove or disprove? No one is implying* that Russia has a perfect scorecard for respecting international treaties.

The bigger point of this article (that seems to go over your head) is that Ukraine also has a responsibility to prevent civilian casualties, which it has neglected regularly. Furthermore, the drone bombing act seems to have been a massive indiscriminate attack, looking at the images, there's multiple nonsensical targets such as civilians dwelling and some civilian parking lots. Whyever would any serious military target those? All this does is escalate a bloody conflict that should've been diplomatically settled years ago.