I think you've read too much into the post. UA doesn't need to stoop to their level to win and really shouldn't. If they start raping and looting, shooting / torturing PoW's, targeting civilians indiscriminately you'll find the mostly positive support from the West will evaporate very quickly.
Rroff is no apologist for Russia - unlike some in here.
No, this is what made me write what I did:
"Russia has less and less compelling them to abide by such conventions."
What (Geneva) Conventions does Russia follow?