ORIGINAL: Flaviusx
That's the real issue here, the surprise turn itself is badly designed.
For a second I was tempted to agree with you. I some way you are right. You could prevent the overly impacting Lvov and Minsk successes by redesigning the surprise turn as well, but then in later turns similarly implausible outcomes remain still in the cards, even if they are less crucial than the first turn and can be mitigated better by the Soviet.
In my opinion this is still an artifact from the crudeness of the I-go-U-go. You can only blind-guess and preposition units, hoping the Axis will just stumble on them (or the Soviet, in the inverted situation). Yet on a time-scale of 1 week it is not credible that any side units couldn't redeploy at least within their ZOC, if not even a few hexes further to deploy in the axis of approach, or set up an ambush or so -- exactly like the reserve mode order. That holds true for both sides. I hope they'll re-investigate the solution they implemented in WitP after the experience with War in the Pacific for this phenomenon. They would get the I-Go-U-Go quite a step closer to mimicking simultaneous real-time events.