A great theory from Katitof , but unless it written somewhere from Relic it did not happen.
It is written in the patch notes.
BALANCE UPDATES
OKW
After analyzing play data from the weekend we saw an increase in early tank usage for the Oberkommando West. We are releasing a targeted change to directly reduce that usage and to bring the OKW on par with the other four factions.
Panzer IV Ausf. J Medium Tank
* Fuel cost increased from 135 to 150
Panther PzKpfw V Medium Tank
* Fuel cost increased from 175 to 200
Panther PzKpfw V Command Tank
* Fuel cost increased from 200 to 225
Tiger B “Königstiger”
* Fuel cost increased from 260 to 310
“Jagdtiger” Panzerjäger Tiger Ausf. B
* Fuel cost increased from 245 to 280
For someone who exclusively sits in stat sheets and patch notes, I have expected you to know that.
Reason different then I have stated, however a reason stated by relic directly nevertheless, unfortunately OKW revamp blog post is no longer there for the "lore reasons" on the changes.
I know you trouble with game mechanics and stats, but pls don't ask me find for you you can simply check yourself be reading the patch notes.
I might not learned by heart all of the stats, but at least I am aware of which units are supposed to be used against what and don't use scenarios that never happen under any circumstances as examples.