Subtype indication in array mode view indication

In LRM 2019, section 6.5.2 we have:

mode_view_indication ::=
  record_mode_view_indication
  | array_mode_view_indication

record_mode_view_indication ::=
  view mode_view_name [ of unresolved_record_subtype_indication ]

array_mode_view_indication ::=
  view ( mode_view_name ) [ of unresolved_array_subtype_indication ]

Is it correct that subtype indication is optional for array mode view indication? It generates ambiguity in below code.

package p is

    type r is record
        x : real;
    end record;

    view v of r is
        x : in;
    end view;
    
    type a1 is array (1 to 2) of r;
    type a2 is array (3 to 4) of r;
    
end;
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use work.p.all;

entity e is
    port (
        data : view (v);
    );
end;