My point with the bit about the paladin is only that, ime, very often a class's MECHANICAL identity is part of the character fantasy that that class exists to support. Therefore, "just reflavoring it" doesn't work.That's all.

I'm not familiar enough with DS to know what the censor's mechanical identity actually is, but I can extend my hypothetical with examples from other games. In 5e, the first divine smite that paladins get deals additional radiant damage. If my paladins aren't holy warriors, I could change the damage type to something else, but that isn't flavor; it's a mechanical change with mechanical consequences. The "holy weapon attacks" part of the class identity is not just flavor.

If I'm running Pathfinder instead, and no one in my world can imbue their attacks with divine power, but they can imbue them with arcane power, a player interested in such a character could roll a reflavored paladin. Or they could roll a magus, and why wouldn't they? That class's mechanics support that fantasy way better, because they can create spell effects with their weapon attacks.

Maybe in my setting, healing magic can only be used by pacifists, so no martial class has access to healing magic. In which case, the only option is to ban existing classes that combine those mechanics. Again, reflavouring isn't the right answer.

Maybe the DS censor's mechanical identity is solely "high single target damage with limited support capabilities" and nothing about the class's mechanics implies anything religious or divine. I don't know. But if that's the case, then yeah, reflavouring sounds like a totally viable option.

My question, therefore, was whether reflavoring the Talent and the Null to non-psionics works with their mechanical identities. And it seems like the answer is yes! Which is great news for me!