I didn't agree with substantial parts of Liz's blog posting, though she is of course perfectly entitled to her own opinions, and it might interest you to learn that neither did the main developer of Perl 6, Jonathan Worthington.
Of sisters, stacks and CPAN
I've always been quite happy with the evolved narrative of sisterhood vis Perl 5 and 6. I do a significant amount of Perl 5 work yet I find Perl 6 very interesting and I hope it continues to catch on. There are many signs that this is happening. As far as I can see, this is all good. It's not a zero sum game. The success of Perl 5 does not diminish Perl 6 and vice versa.