If a friend whom you have known for a long time and whose judgement you otherwise trust tells you something arising solely from their feelings and experiences, are you going to give them contempt?
It is not a matter of either respect or contempt.
Test the revelation against the Territory.
When it comes to the stories of the Apostles and Disciples being martyred there simply is little or no evidence in the Territory until around the Middle Ages. Then, with Fox (or Foxe) book the stories appear fullblown and in detail.
Why would anyone think that they were true? Why wouldn't a reasonable person simply say "Tradition claims that ..."?
Aslan is not a
Tame Lion