I had just read that on the Wales news and it rather left me scratching my head in puzzlement. Thought if they have the vaccine they would whack it in as quick as possible, once used they could pressure for more doses.
Not sure who the vaccinators are, but I'm pretty sure they could find something else for them to do if they run out of vaccine, rather than "sit around doing nothing".
But what do I know, leave it to the politicians.