Yes and there are 3 commanders that have recon/stuka combo... Are you honestly telling me on a 2v2 map you cannot push with your volks super blob and have a stuka creep behind and barrage a B4?
Sure you can, but the loses you'll suffer for decrewing a B-4 won't be worth it.
Because I have done it many, many times. Moreover; if your playing 2v2 one of you should be OST anyway for counter-play against these kind of strategy's which is exactly what the commander system was made for.
Yes, there are 3 stuka/recon commanders which all are mediocre. Going for one of those means no g43, no mortar HT, no Tiger.
If your still having issues with a single ISU-152 stopping your entire army from making a single counter push in one direction to get your stuka within range of the B4 I think this is a L2P issue. If your still struggling I am more than welcome to play a few OKW games with you and I'm sure we will come up against a B4 and I will show you what to do.
And I repeatedly managed to hold my enemy at bay only using an an Army centered around ISU/guards, especially on narrow maps like minsk or charkov it's no that big of deal.