I read an article yesterday which I cannot now find, which is annoying. It was, if I remember correctly, from the electoral commission explaining, but in no way excusing, why so many EU nationals here and abroad were excluded. In short, it was because administratively an EU election is very different to a local or general election, so they can't just replicate what they do for other elections. But because May refused to admit the elections were happening no funds were released to do the work, which led to a lot of stuff being done under extreme pressure with no time for proper consideration.

The author was absolutely straight that it was not good enough.