Doesn't matter. Using the English language doesn't imply that you're offering goods or services to individuals in the EU.

No more than Spanish, and you wouldn't be making this argument wrt a Mexican company.

Not since England left the EU.

Britain is still in the EU and GDPR will apply there.

And Ireland?

Ireland's language is actually Gaelic.

It's the only country in the EU that does not require it's language in translations because even in Ireland nearly no one speaks it.

Ireland has two official languages defined in the constitution – Irish and English.

I think he refers to the fact that each EU country notifies one official language and only UK picked English. But I guess they have found, or will find, a way to maintaing things as they are.

http://eltelawjournal.hu/what-language-for-europe/