You're right that it's subjective, but I think it's true to say that the most commonly appreciated programming language aesthetic has shifted since Perl 6 started to when it delivered. Back then many programmers appreciated the whimsical, pseudo natural-language nature of Perl. These days I don't think that style is as fashionable amongst most programmers and purity and straight-forwardness is more appreciated. Perl 6 is going to lose out because of that.