Can't import posts with multiple images...?

When I import posts which contain multiple images, it seems that WordPress Migrate will import the first image (as an attachment) to the Image field, but other images in the WordPress posts will be ignored.

What happens is that I'll get stuff like this in the posts imported to Drupal:

<a href="http://whatever.com/2013/02/15/some_image/" rel="attachment wp-att-17758">[[{"type":"media","view_mode":"media_large","fid":"1749","attributes":{"class":"media-image alignleft wp-image-17758","typeof":"foaf:Image","style":"","width":"126","height":"126","alt":"Alt text"}}]]</a>

I'm not sure if this should be a bug or a feature request, but what should happen (for a complete migration) is that this markup in the WordPress WXR file needs to be converted into an image tag with the appropriate image imported into drupal's file directory and set to the src of the image tag.

Is this something that can be done? Am I missing a setting or is the functionality just not there?