I mean they are afterall written 200 years after muhammad's death. And arguments have been made that quran alone was the reason for golden age era. Since there are no silly traditions and restrictions in the quran. And believe that hadiths are more man made speculations. Atleast quran is somewhat older with the oldest being 715 AD i think. Although there are disagreements if it was preserved well. Atleast it has a more dominant theological being than the hadiths have.