If anything, I feel like sturmpios should get the shrek upgrade. It's a trade off for a STG rifle or a mine detector. Not as spammable as volks either.
I thought about that and even discussed it with Cruzz awhile, back, but I think the general consensus was Sturms now have too much on their plate. They repair, are a fighting unit, are responsible for buildings, as well as sweeping.
I could be wrong and I would be willing to test Sturm Shrecks -so as long as it locks out the sweeper- to see how OKW would far. Of course, I will keep saying this, the Raketen buff should have been with OKW for the StGs to see how it would fair.
Maybe I haven't played versus enough high-level players in my mod and all we be revealed on the May 7th tourney, but OKW is not in that bad of a spot without shrecks, depending how their other support gets boosted to compensate.
@Atomic Rocket: Those were very old stats. the StGs got a considerable boost to mid while their long is on par with a volk rifle.