A security team receives more intelligence than it can read: vendor research, CERT and agency advisories, ISAC sharing, commercial feeds, vulnerability bulletins. Most of it is irrelevant to any particular organisation, and the relevant parts are buried in long PDFs. The analyst who should be hunting spends the morning skimming, and the item that mattered is read a week late.
Summarisation alone does not fix that; a shorter version of an irrelevant report is still irrelevant. The useful step is relevance: matching what a report describes (the products, versions, sectors, techniques) against what you actually run and what your detections cover. A summary that leads with “you run the affected appliance on two sites, and we have no detection for the persistence technique described” is worth reading the same morning.