It's not "absurd." Or at least, it isn't unless you misconstrue what's actually being said. Eliminating hallucinations and being perfect and omniscient aren't the same thing. It's not about being 100 percent perfect, but simply that the points for which It's docked won't be the results of hallucinations. Maybe it won't know an answer, and will say "I don't know." Maybe it will have an opinion on something subjective that's debatable, but that opinion doesn't include hallucination and is simply a shit take like human beings might have.