still has to be voted through by both houses though jm so not just the stroke of a pen
Errr, has it not occurred to you that what one Secretary of State can do "at the stroke of a pen" a subsequent Secretay of State can simply undo again, just as easily, with another stroke of a different pen.
Rebanning after repeal will be as difficult as the first Ban was to implement - and it is very unlikely, after the efforst of hunting people in the last 2 elections, that any Labour Government will have the stomach for that fight again for at least a generation.
Your suggestion on the other hand is entirely too easy to overturn.