This is actually a nerf. Soviet early-mid game did not get changed that much, so the T70 is still obligatory (even the nerfed version), meaning you still need to spend the same amount of resources as in the live version, but you do not get Mobilized reserves for free anymore after tech up. So you must delay either your first or second T4 vehicle.
Not just that... the soviets still arent adequately compensated for the T-70 triple nerf... so now not only are you paying more than you do in live... but you also get less performance aswell...
The soviets are already struggling in live and this change will simply remove them from the game...
The balance team seriously needs to reevaluate their priorities... it seems like they dont even play this game...