Another POV would be to allow shadowing of both variants inside a nested scope. °

Cases with recursive structures or functions may profit from this.

(But the elements of the array would be nested arrays, not objects)

hence

{
    mine @sheeps = ( 
        [ qw(Shaun Shirley Timmy) ],               # cartoons
        [ qw(Dolly Daisy Debbie)  ]                # clones  
    );
    
    for mine $sheeps (@sheeps) {                   # mine!
        say @sheeps;                               # := @$sheeps
    }  
}
[download]

prints

ShaunShirleyTimmy
DollyDaisyDebbie
[download]

°) NB this is consistent with the proposed semantics in the OP.