Meanwhile Grand Offensive is stuck with Panzer Commander that can't be used in its Tiger and was left there even after it was removed as upgrade path for the Tiger,
Grand Offensive is a powerful commander that is perfectly in the middle ground in terms of popularity (and strength). The Panzer Commander slot helps balance out the commander that has 4 other very strong abilities, and it's a nice upgrade for P4s (arty) or Panthers (sight and accuracy) anyway.
Airborne still has paradropped team weapons despite backteching for them being made quite cheaper,
Airborne is a powerful commander that is top 3 in terms of popularity across all modes. It has a powerful offmap and the team weapon drops are still way more efficient than backteching.
Feuersturm still has incendiary barrage as single slot for a single special ability for a single unit locked in BTG HQ, despite the same commander having Opel Ambulance.
Feuersturm is ridiculously strong on city maps and top 4 most popular commander in teamgames.
None of these commanders needed any major overhauls or ability swaps because they are already good and popular, and to avoid the risk of making them too powerful.