Claim 1: his hands are bloodied, how can you accept his Hadith's?

Claim 2: There is a hadith that the prophet promised a group of his companions hellfire to the last of them dying. Turns out it was Samara. So how can you accept his hadith?

Regardless, how is this relevant to Islamic Revival? A 90-pager revelling in some esoteric "Shobha"? 99.9% Muslims never heard of these claims, so why revive them?