Error estimate for OLCI acquistion bands

Based on the Product Data Format Specification of OLCI Level 1 products ( ; §7.1.1, p.40-46) I expected to have Oa##_radiance_err bands, with error estimates per acquisition band.
But I don’t see these error bands in the data I downloaded. Why?

Even this is documented it is not included in the data.
As you can see in the ncdump output it is not included in the file

It never made it into the data.