VPs were based on historical results and occupation times, obviously losing Leningrad gives Axis an advantage in terms of VP. Good that you kept Moscow. It can be argued of course that LG falls too easily in WitE, but maybe less so in 1.08.09.
On the other hand 4:1 VP ratio in losses favours the Soviets IMHO, I'd like to make it 3:1.
Sure, there is no absolute guarantee the points are 100% balanced. But what's important is that they allow a precise comparison (unlike regular campaign game). Later play with reversed sides and check who got best ratio as Axis.