Never heard this until now. Maybe the Italian influence? Announcers trying to be trendy and home-slice chill?
TAKE TWO: "correctly" Well, now that I figured out what you mean, language and pronunciation evolve as the language moves around the world. Spanish (which I teach) does the same thing over its 20 countries where the language is official. Caribbean is different from northern Spain, differs from southern cone (Argentina, Uruguay, parts of Chile), is different from central America, Mexico, and Andean Spanish.
Ergo, English differs from New Zealand to western Canada, to all over these freaking USs of A, to South Africa, to Australia, to eastern Canada, to all over Europe. There is no "correct" in the eyes of daily speakers; there is simply our way.