Yes, if. You started to speculate here that it would not change a thing. The thing is, it would.
They aren't probably going to get this much but it would make a difference and I hope they will get it and push Russians outside their borders.
If Ukraine were to do enough damage to make them run back to Russia I'm sure it would make life easier for everybody, even the average Russian who goes to work and watches TV every day hoping for the war to finally end. Since Putin doesn't want to end it, somebody else has to end it for him.