The question is, how did alan get like he did. Is he just an attention seeker?
It's tricky stuff. Possibly Lun hasn't even completely made his mind up.
If it wasn't for him becoming the funniest character, a lame theory might go like this.
NOTE: I can't remember who the other Blood Lyn to leave is or whether we've worked it out or not.
But if it was Alan, and he WAS straphalyn, perhaps he killed Traz's mother, that would explain him holding back his skill, if he knew who Traz was, but not the other way round.