Maybe but I don’t even think obers really need much of a buff on anything. As I said before the BGHQ buffs has a lot of things it affects and that 10 fuel saved from not needing to get a second upgrade makes anything that comes after the HQ faster come out by proxy. So like obers would be coming out earlier with just that change. If there is 100% going to be a change to change the obers I think that change makes the most sense. It would depend on exact numbers but something like 50/70 for Schwerer and Auth might be fine. It would at be a buff to the ober timing without changing their MG timing. Still seems like it could very easily cause problems alongside BGHQ changes. I don’t think the upgrade needs to come any faster and other things that need better timings can be buffed other ways. I think (and form what I hear many others agree) the current change is super broken in terms of timing compared to power.
Honestly the only issue I see is the Hetzer and Ostwind, either make them require Panzer Authorization again or increase the Battlegroup cost by like 10-15 fuel so it delays them a bit since skipping Flak HT allows for a really fast timing that isn't countered unless the opponent goes double AT guns.
Ostwind and Hetzer should require Panzer Auth. Schwerer Panzer should be cheaper and Panzer Auth more expensive.