True. But I agree with @Trajan72 in that the name conventions seem sadly mixed for countries (and provinces?): sometimes the proper (?) tribal ending, say Cornovii, Parisi, Eburaces, and sometimes the more improper (?) 'civilised' -a at the end, such as in Scandinavia: Herulia, Rugia, Sueonia, Sarmatia. I'd prefer all tribes to be named as tribes.this are not provinces. This are states/countries.
But surely just an oversight at Paradox's end and easily fixed in the localisation files during development.