If if Poland puts up a fight, with that irritate you? Seems to me you are just too easily annoyed when things aren't happening exactly like history. Perhaps this means the "historical route" needs to be more solid, but keep in mind WWW involves two human experienced players changing the world.
If you want everything to be the same as WW2 every single time, it seems your only options are to make sure the humans playing always make the historical choice, you delete all random events, and you play in historical mode. In which case its not really HOI4, its just a ww2 movie where you are clicking buttons for no real reason. In this case, a lot more went ahistorical, some was random, some was directly related to the choices of the human players involved. But there is no evidence that this is something that is a problem with the game or would always happen. Seems much more likely, especially if you take Podcat at his word, that this is just a "perfect storm" of events, choice, and randomness coming together to kick the Soviets in the back. In fact podcat clearly stated there are benefits to micromanaging rather than using advanced battle plans. I don't think the assumption you are making that one is way better than the other needs to be true. It just means the benefits of micromanaging depend entirely on the player doing it and their skill where as battle plans are better for inexperienced players. All in the the criticisms are unfair.
Denmark, Sweden, Greece, and China did just fine putting up a defence yet I don't see anyone complaining about that.