Snip
IMO Ostheer was the least "Heavy dependant" faction during those time considering the power of the Panther and the reliable pen of the Pak. Heavies have the role of an are denial and strong AI offensive unit. While Comet/Kv-2 (or even IS-2 can fill this role) the Brummbar is in a weird spot due to its small range and somewhat poor mobility seems good for waiting the opponent to come and not the other way.
While the Tiger could comit to kill an MG or whatever without much risk, making some "camping" around the victory point with mass AT not a viable option. Those nerf combine with frag bombs nerf (good nerf though) turn the meta around that. And the lack of power from the Panzerwerfer to fill this gap is clear (Panzerwerfer is IMO a bad unit, but beyond that, it is not meant to clear an area like a Katyu or Calliope).
This new "meta" often forced in the UTT2 the OKW to produce stuka to counter those AT/Mg/mortar pit and therefore giving up to the OKW P4 (a powerful unit).
To conclude, I'd point out that the Tiger hasn't seen any big AT change, so its role as an heavy which counter medium (T34-76/sherman/cromwell) is the same, but its real "spearhead" role as I described isn't good anymore, and Ostheer more than others with their weaker infantry (without doc) and weak "area cleaner" (what I tried to described with the Brummbar ect...) struggle more than ever to clearly forced its tempo to the game. (The Soviet lack of early game powerfull couldn't be exploit in 2vs2 because they were often paired with UKF and their AEC, installing a mortar pit and holding the line against the weak Ostheer assault).
Those obervation led me to think that the Tiger had a real role within the Ostheer synergy and alone was able to overshadow some weakness which now are clear. That's why nerfing other commanders (which is not a bad idea) isn't what will clearly help the Ostheer to come back (because the Elephant isn't that good in 1vs1/2vs2 IMO and isn't enough to overshadow Ostheer weaknesses, while the inf doc is a bit better)