Newbee –
First of all, R Mizrachi was being illustrative, not literal, which is the very reason that I said before that these things cannot be presented in summary snippets.
While it is easier for you to hear “I don’t know” as a better option, there are many who find that answer sorely lacking.
Lastly, and I say this sincerely as an agree to disagree point, I could never consider it human nature to look at someone in any way because of who they may have been in a past life. I cannot fathom anyone who has the depth to understand that system to also be capable of such shallow thoughts. I think the idea of looking at someone with judgement of who their spiritual self may have been in a past life is ridiculous. I know you disagree, but it personally find it unfathomable.
Adding the dimension that they may be imperfect for the specific reason that they have almost reached perfection, and that you would never know which case applies to them, it doesn’t make any sense