I think the interesting thing here is that the EMA were publicising their updated advice at the same time as the MHRA and while it seems the MHRA + EMA agree it is a very rare side effect the UK is changing course and the EU will continue to recommend it to everyone. I'm not saying one decision is right and the other wrong but it goes to show how difficult it must be to make these calls (I'm assuming no political influence given the regulators are supposed to be independent).