Before patch, I was building Obers maybe one time in four OKW games. I don't think they were that necessary and I don't realy feel this change as a nerf. In fact, I don't feel any nerf at all with OKW, but the idea that such a unit with such a big price and an upgrade that you pay amo for performs as now, doesn't seem to ok today. They should lower their price a bit, that wouldn't harm anybody.
I agree with you, as I say, OKW has combined arms solutions that are effective. But it is also really easy to A-move blob with.
From the 10 games I have played vs Axis factions since the patch, one time I have faced a player using combined half-truck + JPZ4 + inf and I lost vs him. Every single other games, blob A-move volks + falls/sturm/fusillers into panther.
And the majority of players loves that. They love this faction for that the same Principe they love campy/arty maps like Sittard Summer or Shled in vcoh. Because you can play really easy with and still win a lot of games.
Obers nerf was required, in a way or another, but in fact OKW faction need a redesign around volks if we want to remove the blobbing issue with. Since it is not going to happen, OKW will remain the blobbing faction by excellence.