Appears to be some disagreement about how much damage was done to the records: ranges from minimal damage that has been fixed to “massive damage” by several sites and at least one blogger. My suggestion is before relying on a few sources to make a blog post, contact the direct source and compare to what other sources are saying.
Leaking dome at National Records of Scotland causes massive damage to precious historical documents: https://www.scotsman.com/news/leaking-dome-at-national-records-of-scotland-causes-massive-damage-to-precious-historical-documents-1-4973084
Disaster for Scots records.:https://forum.familyhistory.uk.com/threads/disaster-for-scots-records.32368/
Leaking dome at National Records of Scotland causes damage to records: https://www.historyscotland.com/articles/news/leaking-dome-at-national-records-of-scotland-causes-damage-to-records
History Scotland‘s sister magazine Family Tree contacted National Records of Scotland for an update and was given the following information:“Following exceptionally heavy rainfall last week, water ingress was detected in New Register House. There was no significant damage to records or building fabric and a successful repair was promptly carried out.“A small number of marriage, death, and still birth records from the late 19th century to the mid 20th century were slightly affected by water.“National Records of Scotland hold over 70,000 metres of records in our collection, and 15-20 metres of records were affected.