It seems almost like an 'organised' scheme.
Humberside gets Class D - and has less than 50 CAT flights a day.
Norwich applies for Class D and has less than 10 CAT a day.
Stansted gets a TMZ - the first in the UK on the basis that they don't want to offer any service to GA - just keep them out.
And then Glasgow sufddenly need a TMZ to cover a small area which has had no radar for a year.
It may not be a 'plan', but there is certainly an underlying theme.
I'm with your members - if the TMZ is not promptly withdrawn then I believe we have something that needs to be fiercely resisted.