I think I have had a few games that have desynced when only a couple of acus have died, but not when all are alive. (note the game itself came up with a desync window, not the replay specifically)
Well I am searching for replays since the desync of the real game seems to happen rarely so it should not be a big problem. What I forgot to mention is that I don't rly mean replays where all ACUs are alive till the end but where players disconnected before their ACU died and not after.