Having each colony randomly decide whether they go to Vichy or Free French is not a bad idea. But game balance is shot to all hell if Free French troops can launch an invasion of Algeria in 1940. Similarly, the AI is just as brain dead as in HoI3, launching small invasions that are doomed to fail and end up eating their manpower - that's what happens to UK in that video. Then USA gets into the war bit too early when they invade Spain and end up releasing their holdings for the Free French, mixing things up even further. I'm also afraid that the SU attack is hard coded, like it was in HoI3 where SU would always attack once Germany captured London, regardless of what the situation otherwise was, but that's impossible to say for sure based on these videos.
Finally, the combat AI still seems to do those insane deep strikes with a single cavalry/motorized division - you can see two of them happening in one of the videos. They were almost pointless in HoI3 but could wreck havoc in the supply system. In HoI4, where supply system is allegedly different, they are probably completely pointless. The purpose of a breakthrough should be to envelope and encircle the enemy, not to make a rapier-like piercing through the front.
So yes, it would certainly seem that the AI is not any better than in HoI3 and the battle plan system is a "clever" way of hiding it, by forcing players to use AI as well, just like has been predicted.