The 1954 'Definition' seems like the equivalent of the US Constitution's 2nd Amendment....

a) it has been rendered out-of-date by by many years of social and technological change.

b) many people understand that, and would be delighted to see it brought up to date and made fit for purpose in the 21st century.

b) those whom it suits to keep it static will not countenance any attempt to modernise it.

Modernise or die - never truer than now.