SEO-449:  If seo_sdk_enabled flag is set to false, then don't render seo contents ...

...(but show the footer).  If bvreveal=debug is passed into query string, render contents anyways.
shouldn't this be
'seo_sdk_enabled' => $params['seo_sdk_enabled'],

and in the example file set the parameter to FALSE or TRUE?  If I change the value in the Example file the sdk is always enabled.

This seems like it would be a more flexible approach and it doesn't preclude the implementers from hard coding it at a later date.  Another approach is set a variable to the parameter earlier in the code and then if nothing is passed in from the calling code set the variable to a default value of true.