Take another step back:
One side is defending its territorial integrity with help of Russia.
Another side are terrorists receiving support of US/NATO. Why shouldn't former totally obliterate the latter? Because of their big bully ally? At least don't make it looks like human rights defense, this is all propaganda.
Bombing civilians is never okay, though; it's not okay when the government does it, it's not okay when the rebels do it. It should be roundly condemned regardless of the perpetrator, and brushing it off as "defending territorial integrity" shows your _own_ bias, in my opinion. There are no "good guys" and there's a fucked messy situation there and I personally only have sympathy for the completely innocent people caught in the crossfire. Anyone doing the firing I have none for.
If the people you call civilians are terrorists loaded with heavy guns gave by western "allies", I think it is ok to bomb them. I think it is not okay for a foreign country inadvertently bomb neither side, though.
One side in the war is methodically bombing bread queues and hospitals.
Our media is reporting that one side in the war is methodically bombing bread queues and hospitals.
I'd say the former is connected tightly to the latter.