The Minovsky particle concentrations necessary to disrupt communications and radar requires dozens of mobile suits have a bloody good battle for hours to create. Or, for that matter, a few days worth of operating particle storage released all at once. Which is detectable in itself. And really, no more effective than conventional jamming, and probably easier for your average AI to blast through with proper modulation. It's not destructive... it's just mildly rude. Like being especially noisy on a bus.
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--m(^0^)m-- Wot, no sig?
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--m(^0^)m-- Wot, no sig?