That's in the latest version downloadable from the VOSA web site. The rule used to say that they had to have a specific radius on them, now they talk about "safety edges" and "blunted edges". It came in about 2-3 months ago, it makes a change for clarification to work in favour of the builder
If you search the new document for "blunted edges" you will see lots of areas where they have removed specified radii in favour of the blunted edge rule.
Enoch