Pretty sure its a you can only play obk issue. Because like 80% axis plyers use OBK instead of ostheer now and and on top of that there is commonly a 9 to 1 german to allies matchmaking ratio.
Im a 7 Year veteran in coh and I play all factions. Challenge me with OKW and I shall point out the weaknesses, since you are clearly missing them. I urge players to play more before posting on the forums crying IMBA.