the lmg arguably outclasses PPSH cons now... not only are they similarly priced post nerf (ppsh cons used to be 45 muni) but LMG cons still retain the combat advantage due to punishing long range DPS and synergy with the MG42...
PPSH allow cons to stay rufly at the same powerlevel as they are in early game against grens, in other words grens would win at long range, cons would win at close range. Thats pretty much its whole point.
Aside from that PPSH package changes nothing in general. Point is being that with other options soviet player can have, even considering commander options, PPSH ones are just not preferable.