$othervars->html_alt or $othervars['html_alt']

In swftools.module / function swf(), should the line for setting the html_alt text be:

$html_alt = ($othervars['html_alt']) ? $othervars['html_alt'] : variable_get('swftools_html_alt', '<p>Sorry, flash is not available.</p>');

rather than using object notation ($othervars->html_alt). The description of $othervars says it should be an array, rather than an object.