Have you read the interview? Unless I missed something the only thing she said which could be construed as a criticism of the UK approach is:It is a race, though. Not between individual countries or blocs as in the case of the EU but against Covid. Once again she criticises the UK approach rather than concentrating on their own.
It is also a fact that the AZ vaccine has been so successfully undermined in the EU generally that people are turning it down. I can’t see it being used to any great extent there as people will be demanding Pfizer, Moderna or others maybe as they are approved as they regard AZ as second best.
"I think it's risky to simply postpone the second vaccination. We should stick to the specifications that the manufacturers have determined in their extensive clinical tests. We are therefore not extending the second vaccination." (Google translate version).
There's an implied criticism of the UK within that, for sure, but it's a legitimate view to hold. I'm not saying it's my opinion, just that it's not a mad idea that you'd stick to manufacturer's specifications about timing of the two doses.
However I completely agree with your second point about the way the AZ vaccine has been undermined in the EU. Stupid, reckless stuff - although probably individual European politicians like Macron are more to blame for this than the EU per se.