Ah, that old chestnut again. The argument falls down when we see what really happened: Perl 6 had and continues to have a huge positive influence on Perl 5, the future belongs to both as there turned out to be no discontinuous move, and Perl 5 stays up-to-date.
It doesn't really matter if it turned out not to be discontinuous. The fact that it looked like it was going to be for a long, long time is still a big problem.
