What issue?
If you're talking about T3 level armor, then you need to subtract BP3 and T4 costs from wehr.
You will NOT go T3 and T4 anymore, you have easier way to go T4, you have a choice.
You're making a storm in the glass of water here.
+1
Also this kind of thing is a bit pointless to discuss as straight numbers don't look at other in game components. US rushing for its final tier has no healing or weapon unlocks (unless you pick defensive commander), OKW get bonuses from specific trucks, Wehr unlock their upgrades along with teching up and medic bunkers don't set back their fuel. Soviets tiers should be in a much better place now.
I'm sure numbers can be tweaked if needs be that's why we have the mod to test before actual release.