What was "good change for Russia"?
Provisional government had a lot of decisions or rather "undecisions", for example regarding land policy. For which there was a huge support from peasantry. Then it's questionable position on war.
Provisional government was what it is -- provisional. There were a lot of disagreements between majority of people and old elites. At the end, old elites lost.
And what " murderous genocidal shit" are you talking about? I will not argue about excesses in repressions, as they clearly existed. But can we call them genocidal? Then, if you talk about Holodomor -- it's very controversial topic, surrounded by Western propaganda. You can easily find and read Stalin letters to Kaganovich, where you see that they actually tried to solve the problem of supplies but due to poor government organization failed to do so. So in no way it was "murderous genocidal shit", but just a system failure which lead to catastrophe.