I think the key parts are on Page 2
Sub para 1 "Cracks found on the fork area are superficial and do not involve components on the main load path"
Sub para 2 "affect only the filler material which is not structural"
Any item from any manufacturer subjected to minute scrutiny will be flag up imperfections. That is what has happened here and as Nooby said blades are being returned to the Manufacturer for second opinions. Not heard of any blades being scrapped - anybody else?
Awaiting the final report with interest!