Overall this is an okay article. However, there are several critical flaws:

1. It obscures the specific material conditions the USSR found itself in the late 20s and in the 30s. We know that the Soviets expected a large war against them, and the forced transition to a streamlined planned economy was, well… Forced. Lenin himself did not envision a fast-track transition to a near-fully planned economy, and that makes sense. Were they not to do it, though, the Nazis could have killed another 10 million people.
2. It also obscures the fact that the USSR was the first successful socialist state, hence they didn’t have the privilege of learning from others’ mistakes, nor did they have a blueprint of how to do things, at the same time bearing the heavy brunt of the Cold War, vilification, diplomatic isolation, massive sanctions, embargoes, etc. The PRC, on the other hand, sort of grew in their shadow, quietly learning from their successes and failures. They were attacked by the West too, but not to the same extent
3. Stalin did not “kill those economists”, that’s just “Victims of Communism”-grade jab. Apparently, someone wasn’t a huge fan of Grover Furr, it seems. This is who they site, by the way: “[17] See for example: Jasny, N. (1972). Soviet Economists of the Twenties. Cambridge: Cambridge University Press; Lewin, M. (1975). Political Undercurrents in Soviet Economic Debates. London: Pluto Press.”