It is conventional wisdom because it goes against all human instincts that the fruit of your work should your own property. That is why all communist systems ultimately fail, because they kill all incentive to work hard and to innovate since no single individual can get the benefits of their own work.

Let me laugh at your "superpower" claim regarding Russia. For dozens of year that "superpower" had to rely on importing wheat from the US to keep feeding its own population. Being able to launch rockets while your people are literally starving (and I am not talking about being "hungry" as we see often nowadays) is not an achievement, it is an utter failure.

There was no economic growth under communist Russia: it was simply spoliation of people's property to feed certain sectors of the industry (the ones that were "successful". Like Bastiat said, there are "things that you see and things that you do not see". Focusing only on the achievements of Russia makes it easy to forget the massive failure of its system in all other endeavours.