The UK has put a lot of effort into speeding up the roll-out of these vaccinations in general. Enough that it basically leaked the fact some kind of Covid vaccine was coming a few weeks in advance because so many people were involved in the pre-planning and the timescale was so aggressive.
You make it sound like a bad thing. It was never a secret the vaccines were coming and as each day of delay means 5000 people dying I think putting a lot of effort into speeding up the rollout is pretty well worth it.