I'm just pointing out that while the doctrine as a whole received significant buffs, the former spotlight of the commander, the JT, went down quite much. And I believe the speed nerf plays a major role in it, the range nerf is just the icing on the top.
Yes, the JT is still quite powerful in capable hands, but the non doctrinal alternative, a pair of JPs isn't too far behind, in fact even better in some situations. In ostheer's case the elephant is a no brainer due to lack of 60 range TD and in soviet's case the ISU is also a no brainer due to its combined AT/AI role paired with good range.