YOU are the one who is WRONG.13amp sockets are (Wrongly) permitted on a lighting circuit
Give it up, or convince J/PEL 64 that you have the experience and understanding of electrical matters to contribute to a future edition of BS7671. Once you are on the committee I am sure that they will take your views into account.
Up until that time please stop posting WRONG and MISLEADING information.
The unwary DIYer coming on to this forum, who is not aware of your stupidity, could well think you know what you are talking about.