Cybernetics has nothing to do with computing or computers at all; it was a very opinionated attempt at explaining natural and social phenomena in terms of some narrow snippets of control theory. Nothing from that media panic "set USSR back" in computing; the control theory was being used in engineering (case in point: R-7 with a SOTA control system), computers were being developed (BESM-6 was introduced long after the moral panic caused by Wiener's book ended), etc.
The real cause was the engineering tradition (and planned economy which led to twisted economic incentives). Soviet engineering school has been influenced by the German one for half a century, and was really slow at picking up computer science and software engineering as separate disciplines; both were mostly seen as some unimportant subset of applied math. It wasn't some ideological bullshit, just genuine inertia. By the time US programmers had a strong software development culture, Soviet programming culture was stuck at the pure math level. Just read any Soviet textbook or programming manual from that era and you will see the difference immediately. Hardware development has been following suit, struggling not just from the lack of the expertise in high purity chemistry (traditionally weak point of Soviet physics and engineering) and semiconductors, but also from the lack of direction set by the software development and economic incentives. That's why the Soviets decided to copy IBM - and the computer in OP is an IBM PC clone. Not because of the cybernetics (the panic was unrelated and died long before that decision) or any other reason.
>that it would never catch up
Hardware, sure. The software development eventually started to catch up around mid-80s, when the Soviet computing craze has started with first personal computers that were more or less accessible to the population.