Sakura is warming up to naruto,yaah you have some point though didnt read actually but have you ever thought about hinata..??
1. she is still in this series as th role of lover of naruto
2. she is the only female in nv who confessed her love to naruto
3.kishi showed past relation AND current [holding hand situation] with naruto
4. MOST IMPORTANT NARUTO KNOWS THAT SAKURA LOVES SASUKE
And naruto has said that he loves sakura he can't just randomly start loving hinata, you can't love people you don't know