I just explained how that is not true. Soviets have the M3 flamer or the mortar available right at the start. USF has a T0 mortar. UKF has the UC Vickers to deal with HMG 42s in the open. Only UKF struggles against HMG 42s in a garrisons until they get T1 and the Wasp or the mortar pit, but "the other guys are having a bad time too" is not a reason to make things worse for OKW.
OKW on the other hand has nothing at T0 except infantry spam. On maps where they can't flank, they need either a Luchs or an LeIG to counter Maxim spam effectively (especially if Maxims would get buffed), which don't come until 4-6 minutes into the game, which would mean early Maxim spam on certain teamgames maps could push OKW off the resources quite easily and right at the start of the match.
If Brits can survive MG42 use on the same maps, OKW can be expected to do the same.
The LeiG and Mortar Pit are not that different in terms of actual accessibility. The UC recently got a set of nerfs. APIT rounds on the 42 delete UCs in ways the maxim can never emulate. Etc.