So all the advantages the OKW has has to be put in the base...
I'm sorry, do the OKW trucks suddenly stop repairing and healing if they're in the base sector? No.
You can't just brainlessly put your Flak truck on a fuel point and expect it to defend it for free every match, nor can you put the med-truck right at the frontline and beat the enemy by attrition with your healed up volks.
Sometimes you have to adapt and play differently, and if this means putting your trucks in the base if you see a british player with this commander, so be it.
Soviets and Ostheer can deal with no forward retreat. There is nothing wrong from having to walk from your base.
and vs brits, forward bases aren't "all the advantages OKW has". leIG is really good at shutting down emplacements and pinning squads from long range, not to mention the early game advantage OKW has in the brit matchup.
IL-2 bombstrike shits on OKW trucks too, Air Supremacy just shits over a larger area.