Couldn't read all of the above posts, so sorry if some points have already been covered extensively. My take on the issue:
Previously, SOV was very bland since the only viable build was T1 Penals into T70. This was because 1. Conscripts were only mediocre and hard to replace in the late game and 2. The Maxim in T2 lacks a lot of firepower. So the best bet was to try to survive the vehicle game until you get a T70. To make Conscripts more viable, balance team introduced a late game upgrade - Mobilized Reserves. That was basically the only major SOV specific change (apart from IS2, which was part of an overall heavy overhaul).
I think we should look at IS2 and Conscript problem as two different things. The easiest solution would be to tone down the late game buff of mobilized reserves. Conscripts have not become better during early game, but are the main reason why SOV is hard to bleed in the late game. Just up the MP cost a little bit or reduce the DPS boost in cover so that they are less efficient.
I thought this way too.
Imo cons were never mediocre before, just underused under explored. The 7 man buff incentivised player to try cons and discovered they are pretty solid and hold their own when play to their strengths.
Cos t70 was not touched and 7man comes late. So what filled the gap was simply cons are never mediocre.
I made an old whiner topic about new 7cons vet needs tone down, so thankfully post wc19 findings tally with me.
As for is2, similarly i felt Wehr/axis lack pen and the nerf to axis armor values now puts allies armour ahead in hth. Good now we can consider this too with pro results analysis