However, I also waded into the Khmer Rouge business and his words are uncomfortably close to justifying Pol Pot. Complex as that situation was there's really not any excuse for what the Khmer Rouge did.
You can also read his actual words on Ukraine/Russia (easy to find) and see the same tendency there.
At the same time, his analysis on the US and ME wars is more accurate, IMHO.
This seems to be a pit some otherwise excellent minds fall into: one side bad implies opposing sides are somehow good.