Fighters should be judged by their skills and not perceptions about their character. If and when he proves he has the skills to fight in the league, which he will have, he should be back in the league. Which isn't to say he doesn't need more development or more fights, he does.
But people like to trump up all these subjective constructs about "toughness" and who has it by what unquantifiable measurement and who doesn't. And if someone doesn't have what they subjectively feel is the "toughness" then they suddenly become dismissive, even offended. I think merit is better standard. If someone can win fights, they should be in. And right now does he have the resume? Not quite. But if he wins the next 4-5 fights, picks up a LFA belt, Titan belt and is clearly the best prospect on the regional scene, I don't think it's a good argument that "well I was offended by him losing his 6th fight on 10 days notice."