No question. It would definitely be better.

Unfortunately, there's no way to give each_value() a prototype
that allows it to also take a thunky block as an argument...in addition
to all the other argument types (hash, array, reference) it currently takes.

The current declaration is:

    sub each_value (+) {...}
[download]

but, to be able to accept a block it would require:

    sub each_value (&) {...}
[download]

and there's no prototype marker than allows both. :-(

Damian