Most of the world other than the US refers to checking accounts as current accounts. So the use of the word "current" makes sense, but not to most people in the US.
It's really just a word used in the UK. I travel internationally extensively and anymore, the english version on an ATM shows as "primary" not current. Only see current in UK and HKG obviously. Everywhere else it's a rarity to see an ATM display "current account"... But either way, the product is targeted toward American consumers, so be it a catch on the word currency, or targeting those familiar with current term, it's bad marketing.