I wonder if the Nazis killed anyone in Soviet territory or did anything particularly heinous that would disgust anyone.
(I kind of wonder if Quora should be disallowed cause it's just easy pickings)
https://www.quora.com/Why-did-Winston-Churchill-oppose-killing-SS-officers-after-the-war-Did-Stalin-want-them-dead-for-revenge-or-to-stop-a-future-Nazi-Germany
Bigger ratio of officers and especially NCO's to rank soldiers is normal in peacetime, it gives army room to rapidly expand in case of war, though 19% officers is still very excessive. It is a crisis which is characteristical for armies losing their military proficiency and turning into bloated bureocracies. What's unusual in this particular case is that they are in constant war, but they only do one sided agressions against weak victims so majority of the army is free to wallow in corruption and stagnancy while minority is responsible for carrying the abovementioned acts - therefore this minority is the real military and the rest are likely just ballast - again characteristical thing for decaying colonial empires, compare especially with post-WW1 France.