You’re struggling to understand Python’s success because in your head the primary reason Python succeeded was because it happened to be prettier than Perl, and you can’t wrap your head around why that’s enough. But it’s not enough. Python succeeded for many reasons.
Regardless, you’re regurgitating exactly what I said. Your gut is that Python was just a slightly better replacement for Perl. This is at best one dimension. If you can’t broaden your perspective, then this thread full of examples and arguments for why Python became popular will be lost on you.
If you’re so confident in your assessment, why did you bother to ask?
You keep saying it, but from 2000-2010, what scrutiny did it escape, exactly?
Are you saying when universities dropped Java/C++ for the introductory course and replaced it with Python, they simply threw dice to pick the language?
Are you saying all the Perl programmers who kept saying "Python will never have the power of CPAN" didn't exist?
Are you saying Eric Raymond never wrote an essay on the virtues of Python?
What more scrutiny can a language get than people writing large projects in it over time?
Basically every languages mostly escapes scrutiny except from very niche corners (usually people deeply committed to other languages that aren't actually considering alternatives, but criticizing everything that isn't their preferred language for not being their preferred language) until it succeeds, because there are enough of them that basically no one cares to put the time into scrutinizing them until they achieve a critical mass.
That's not why Python succeeded against other languages.