Incorrect Flagging for Sanitization of Arrays

When run with the “Plugin Repo” checks, the code throws an incorrect report of WordPress.Security.ValidatedSanitizedInput.InputNotSanitized if the variable is an array that is sanitized via an array_walk in the next step.

Here is some illustrative code:

$post_ids = $_POST['selected_posts']; // Should not sanitize this since it is an array. Will sanitize each of its components in the array_walk.
array_walk($post_ids, 'sanitize_text_field');

A use-case for the above is, if you are doing a search and replace of certain text across selected posts via the WP_List_Table object, you would want to sanitize the individual post ids rather than the array object. To wit, it is incorrect to call sanitize_text_field on an array object.

Is there a way to indicate that this is an array, hence the check should not be done here?