He spent 7 years (2013-2020) in London running the Bank of England though - as the first foreign head in its 300+ year existence - he would have been very caref

He spent 7 years (2013-2020) in London running the Bank of England though - as the first foreign head in its 300+ year existence - he would have been very careful to avoid using Canadian/American spellings in official documents - has he just got used to it?