How dare the people rise up against their rightfully-installed rulers and decide they want someone else. What did they think this was, a democracy?

The overall “pattern of the war” is that Russia took a bunch of Ukrainian territory early on, and then has spent the past year having its meat ground and losing big chunks of occupied territory back to the Ukrainians again. Bakhmut has been notable because it was an exception to this overall pattern. We may now be seeing the pattern reassert itself there, though.