On the one hand, in interviews, Tarantino always seems to have contrarian opinions about everything. When Kill Bill came out, he’d verbally knock Lee and praise lesser known movie practitioners.

On the other hand, if you watch the movie until the end, it’s obvious that the movie has an unreliable narrator. We all know how the Tate/Labianca murders actually turned out. Not at all like the movie…

That's not unreliable narrator, it's alternative history. Like when his heroes kill Hitler and end the war early saving millions of lives.