Yeah, I've seen it a couple of days ago on Reddit. I think the only benefit from a taller Fold2 could perhaps a bigger battery. Haven't checked the specs on it. But yeah, I agree with you.. it needs to be wider instead of taller. I think making it wider would make for better interaction with the outside display.
I would like to be in those Samsung Fold focus rooms. Who is saying "I like it" to a narrow outside display? I'll strongly recommend widening it out. Similar to Surface Duo.. I like the idea behind Surface Duo, but the execution was lacking.