After some meditation I think this attempt to transplant Perl6 features with exactly the same syntax is the source of problems.

Perl6 handles some fundamental stuffs like sigils differently and I'm not sure if its possible within P6 to use "when"-clauses within "foreach"-blocks.

IMHO enforcing every detail leads to anti reactions in the perl5 system. I'd rather prefer a semantical correspondence of features than introducing more breaks in symmetry and logical confusion.

For example nobody seems to care that c-style "for" is now "loop" in Perl6...same semantic but different syntax.