I agree, your proposed syntax is much nicer.

I did see somethings surprising.

In:

class Point {
    has Num ($x, $y);
    
    method inverted () {
        return Point->new( x => $y, y => $x );
    }
}
[download]

you have $x instead of $self->x (likewise for $y).

I found this surprising, and had to pause to think for a second or 2. How common is it in other OO languages to not need "self" to reference instance variables in instance methods? Personally, I don't recall ever seeing it done without "self". (Been so long since I last used C++ that I had forgotten.)

More surprising was:

class Cache::LRU {
    use Hash::Ordered;
    our      $num_caches = 0;                    # class data (unused 
+in this example)
    my       $x          = Hash::Ordered->new;   # private instance da
+ta
    has UInt $max_size   = 20;                   # public instance dat
+a

    method set ( Str $key, $value ) {
        if ( $x->exists($key) ) {
            $x->delete($key);
[download]

where $x is also an instance variable.

(Just some additional thoughts.)