Yeah well...If a parable question (Who is really the faithful and discreet slave?) must be read as a literal fact, and the next sentence (...if that evil slave...) is clearly figurative, anything goes.
Fact is that never did the Bible show us anything scientific correct.
While science progressed, interpretations of Bible myth were changed to support scientific discoveries so religious people didn't look too stupid (some do anyway).
Looking back we can say: look, the Bible already said so. But the Bible never said it clear enough to state the facts correctly before the scientific discovery of such facts.
Just like prophecies can only be matched to a fullfilment after the supposedly predicted event.