Avdiivka will fall next week.
Putin (and the Russian (leaderhsip) culture in general, see Stalin) is this:
What are a 100M (of our) people dead if we own Ukraine/Baltics/East Poland/Georgia/... for the next hundreds of years?
Stalin had the same blunders, thats priced in, the Red Army had meat wave attacks in WW2 and lost millions, but achived all it's war goals (Poland, Baltics, Eastern Europe including half of Germany - only the US achieved all it's war goals too, everyone else lost, sadly Poland had the biggest loss).