I live approximately 10 miles from Redcar, in Middlesbrough (which was also Yorkshire when I was born here in 1957) and this is the first I've heard mentioned of the return to "North Yorkshire".
I have to be honest and admit that I'm no longer sure how to give details of my address. Is it Cleveland?, Teesside?, or have we also returned to North Yorks?
I mostly just use my postcode.