Smartcrawl Breaks Gravity Forms Post Submit Actions

I, reluctantly, installed Smartcrawl for Upfront Compatibility

( Reluctantly because I love the traffic light Yoast system, and on an 18 site network - worried that I would lose something, so please Yoast Compatability soon? )

My Gravity Forms Submissions aren't functioning properly.

E.g http://www.silverstreetstudios.co.uk/contact/

If I deactivate Smartcrawl - then this works again.

If I complete the form and click submit - the form submits, but there is no AJAX update. ( the form should disappear and display a message )