Yes! I originally read the headline as "a turkey" because of the lack of a capital T.
They can call themselves what they want, but it unreasonable of the Turks to expect English speakers to write their country's name with characters which are not part of our alphabet.
Yeah I'm not gonna type out the u with an umlaut (?) myself on an message board. If I were writing to the UN or to the Turkish embassy I'd copy-paste it. But lowercasing a proper noun is egregious.