To be caught in detail is exactly what we should avoid here.
Good news! I've never mistaken your posts for sources of well-established, well-documented, clearly thought, or detailed information.
Regardless, an honest rhetorician who made a statement such as "Perl 6 will be a failure because it offers no advantages over Python" would offer some sort of evidence for the polemic.
Are you honest?
... as a matter of fact I know both languages.
I published my first running Perl 6 code over two years ago. Please feel free to enlighten everyone by publishing non-trivial Perl 6 code you've written. I prefer Perl 6 code which, like mine, makes use of features in Perl 6 which are not present in Python. I leave it up to you to choose which version of Python, 2.x or 3000.
Not a surprise, as you never appeared as someone calm and have broad IT knowledge.
My corpus of work can speak for itself. You're using some of it right now, actually.