Ostheer received several minor buffs for its T4 and units like Pgrens/Osttruppen none of which address its fundamental problems at all. One of these problems is that US utterly dominates Ostheer in the early/midgame because of general infantry superiority and early vehicles.
Ostheer also received a de facto major nerf to its mainstay infantry unit, and that alone actually weakens it considerably relative to the other factions.
this.