Good, it is a start. And much better would be for those EU politicians, journalists and other people to move to Mastodon, Pixelfed, and similar independent platforms. That would make a much better example.
I can't understand why government offices for many countries are still on Twitter. At least Germany has their own mastodon service, but my home country Finland still uses Twitter.
Because most ordinary people are on Twitter and not Mastodon
That's circular, though: the more services become available elsewhere, the easier it is for people to switch.
People don’t move to places without ordinary people for “services”. That’s not how social networks work.
In my experience it is the other way round. The reason people are on Twitter is because politicians are there. If they move the journalists and politically interested will quickly follow.
Ordinary people follow politicians on social media?