Dear Aleks, it is usually band's call (not the press) to decide on writing down one person's name whose contribution was very significant to the song or the band's name where they think everyone's contribution was indispensable. Then they send all these to the registry office and to the press and to elsewhere it is necessary in the process of making their work public..
The info you wrote was saying the song was composed and written by Ferman Akgül(the vocal) which was masking other people's contribution. So, I thought that it would be fair a d respectful to fix it as they wanted and write down Manga as the composer and the lyricist, ofcourse in addition to Fiona and Evren -a hip-hop singer from Canada who also made a contribution to Manga's first album as the bonus track (worths to listen btw, it is in English as well). As Doctor-X mentioned, it is written there in graphics as the song's info which is how the band decided on... So, why wouldn't I consider the Turkish press, especially TRT, as a reliable source for this as long as their source is the band itself?
Anyway, it is not about making "me" feel better but thank you..