.. unless of course the standard application for the device is in safety-critical/life-protection systems, in which case "no failures noted" better be honest.
Why? They try to keep all information secret, especially the one that make USSR looks bad. For example, they denied existence of Level 6 nuclear accident for 30 years [0].
If the nuclear accident which had 10,000 people evacuated was suppressed and denied for 30 years, why would you trust them to publish any negative information about military computer?
If the nuclear accident which had 10,000 people evacuated was suppressed and denied for 30 years, why would you trust them to publish any negative information about military computer?
[0] https://en.wikipedia.org/wiki/Mayak#Kyshtym_disaster