Yes what you did works. I edited the widget file located in /inc/widgets/. The file is our_team_widget.php.
You can download here https://www.dropbox.com/s/8pz6n0cmyeexnz6/our_team_widget.php?dl=0
You can install the child theme, create a directory /inc/widgets/ and drop that file in.
That will ensure your changes don’t get over-written in future updates.
We will probably add a toggle to enable/disable this feature in future releases.