I usually build 3x Conscripts, Molotov, Shocktroops, I use the Cons to screen and the shocks to flank and close in on weapon teams, simple and very effective. I know it's a big advantage to have them this early because I regularly use them.
Once more, this is less about how well they can be countered but more about the immanent gamplay design.
Ciez summed it up very nicely here;
I haven't played a single game as a Soviet since the recent patch so I don't really know how fast you can get them but I used similar BO when we had an old CP system. I was usually building them as my 4th unit so I don't think the timing on Shocks is that much different than it was in the example you provided.
As for Ciez comment I beg to differ. I think the idea behind this change was to diversy the openings for both factions and it was quite successful in doing so. Let's be honest-standard 5 con/green opening was boring to watch.