I was originally thinking about the second, but either would be interesting.
By the time of the 2nd the real danger of Prussia being overrun by the allied armies was over. Russia was still formally at war but its main army had been staying on the PLC territory "guarding" its supply depots and, to quote its commander, preserving soldiers' lives. The main action was in Pomerania where a separate corps commanded by Rumiantsev forced capitulation of Kolberg thus ensuring supply of the Russian troops by the sea (occupied PLC territory was already looted and transporting supplies by land was a cumbersome task). Relations between the allies had been fundamentally spoiled and the only thing that kept Russia at war was Elizabeth's personal hate of Old Fritz.
Absence of the 1st miracle did have some potential if (a) Daun was ready to act
much more aggressively than it was his habit and (b) Austrians could provide adequate supplies for the Russian army. Taking into an account that (a) would require a different personality and (b) was rather difficult to provide physically in a territory already devastated by the years of fighting, the miracle was not too "miraculous". You can also add (c): neither Daun nor Saltykov had been ready to take excessive risks because, unlike Fritz, they were accountable to their governments. Even with a crushing defeat at Kunersdorf, Fritz was far from running out of his reserves and "overrunning" the whole Prussia-Brandenburg required more troops than allies had, the different generals in charge of these troops and a military mentality (and organization) which was not quite there, yet, until Napoleonic times.