You might have chosen a bad example, as both sides had many early warning satellites, and such a catastrophic 'failure' in any tactically significant proportion

You might have chosen a bad example, as both sides had many early warning satellites, and such a catastrophic 'failure' in any tactically significant proportion of them would immediately put both sides on high alert. It would be much more valuable to target individual reconnaissance or communications satellites in order to make a 'blind spot' to support a particularly important secret project, but even this scenario would be scarcely credible.