I don't think ostheer needs late game buffs but this part is so . You really never played a close match? Becouse if you did you would know that ONE wipe often decides who wins or loses the game. No matter what faction you play as.
Ostheer squads themselvs wiping enemy squads with their helluva firepower. PzGrens STGs are deadly in mid-close, Grens with MG-42 are deadly at long range, specially buffed with Officier...
It is balance - they dying easy, but they also make other die easy. Compare with 6 men conscripts, which are "hard to be wiped", but their firepower is so low, that they can't kill anyone.
I would like to have effective, but fragile infantry, not tough and ineffective. Riflemans are main core of USF, so they suppoused to be good in everything, UKF... bad design, everything that I can say.
I have a suggestion - if Ostheer players don't like to have such fragile infantry units in stock - let's change Grenadeers to Osttrupen as mainline infantry! Osttrupens are 6 men squad, survivable as you need. But hey... we have already faciton with "Osttrupens" in core, calls USSR. And it sux, really sux...