Why can't @foo be treated as an implicit list for DWIM purposes?

Because that would make the following code terribly ambiguous: 

my @foo = ( 1 .. 5 );
my $list-to-scalar  = @foo;
my $length-of-array = @foo;

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In reply to Re: Function Prototype Context Conversion by chromatic
in thread Function Prototype Context Conversion by tadman

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