The $title$title
variable for the views_viewviews_view
theme hook is added only for the administrative preview. Here is the section of code in template_preprocess_views_view()template_preprocess_views_view()
that adds the title: http://cgit.drupalcode.org/views/tree/theme/theme.inc?h=7.x-3.11#n85
If you want to add that variable to your template override, you can do so with an additional preprocess.