The main thing about the OOB system from HOI3 is, most people who played hoi1 and 2 hated it, because it made managing large scale armies like the Reds nearly impossible on any meaningful amount. This new system seems like it will allow for higher level planning without having to hope the AI does the lower level stuff correctly, and also doesn't mean you have to micro 600+ units across the entire Barbarossa front.
I did enjoy the first two games in the series as well, probably spent a fair bit more time playing and modding them than I should have. But something that the OOB and cooperating generals managed to do was make it feel like you created an army, rather than a pile of divisions.
I totally agree that the OOB system had its issues. But I think scrapping it was unnecessary when it could be improved in many ways and have a more interesting and impactful role, becoming more of a target for the enemy. Which I think is the problem with the previous solution, it offered mostly just a malus if you didn't do it. It should be something more interesting. It does take a few minutes to set up the OOB, but I hardly consider that much of a problem as it saves a bit of time later on in finding things (which could be due to not using the ai for controlling units).
I don't really see the problem with the AI messing things up as I generally don't use it for anything anyway. And really, I find if you have the ai controlling the army there's sadly not that much left to do in the game. If anything I think the new system will cause some really awkward moments where the ai of your units will screw you over (I haven't read up on this recently but basically the ai is supposed to complete simple objectives you give it if I understand correctly, correct me if I'm wrong).
They have actually said they have counters. It's on the wiki and linkeds to a thread where the devs confirmed thy will be an optional feature. From what I have seen from the diarys and especially the video is definitely not dumbed down.
I wasn't aware of this. Unless it was the one from some time ago where the little icons along the soldier model were the counters rather than the replacement for the model which people asking for them are generally looking for.
I Looked on the wiki and found some nato counter icons so I guess they might be in there one way or another. Although my guess is that they would just replace the other icons which wouldn't help that much. The problem here being if anyone wonders that the soldier model works for Europa universalis and Crusader kings where there's not 600+ units to micro + enemies + allies present to try to keep track of. (The video linked in the opening post has units firing in the wrong direction etc. which doesn't help quickly making out what is going on). Who would have thought camouflaged men don't stick out very well in a similarly coloured background?
Here is a few screens of a random save I had lying around showing the problems the 3d models had in HoI3, I think the little counter accompaniying the model in HoI4 is going to help with knowing the size but things like movement might be difficult. It looks a bit different compared to HoI4, but I hope my fears will come across somewhat. Models also don't show units out of supply in HoI3 as seen here.
Due to the game being modded (black ice being the mod here) there's custom counters for many of the German and Russian divisions so the Romanian ones might be the more interesting to identify. That said using models instead of counters could also cause some trouble introducing new units or custom divisions like in this case to HoI4 and be able to tell them apart.