The OSG is irrelevant and does not form part of the requirements of BS 7671, it is merely a guide to this document.
Your reference in the OSG does NOT limit the use of BS 1363 socket outlet ring final circuits to domestic and similar, to gives advice on the limits that are recommended in such places.
These limits do not exist outside domestic or similar premises.
I refer you to the Preface i the OSG
View attachment 13120
Which goes on into the introduction to state the following:
View attachment 13121
Therefore, it does not propose to cover large industrial or commercial installations, and whilst it does have smaller variations of such locations in scope, it does not anywhere limit what can be done in industrial locations.
If you read the wording, it does not preclude BS 1363 accessories in industrial, nor does it limit the floor area in them, it limits the floor area in domestic and similar, which is a carryover from the earlier editions of the IEE Wiring Regulations where domestic premises had floor area limits, and larger/industrial premises did not.