Oh, that’s interesting! When I add that CSS directly to the browser via the inspector, it works as expected:

I took a peek at your CSS and it appears as if the CSS that you added at the bottom of the file is commented out (there isn’t a closing */). Was that intended?
/* Tim's stuff
/* fix for href link in event listing, to force line break inside container.
.tribe-events-meta-group-organizer .url a {
word-wrap: break-word !important;
}
Can you give the following a try instead?
/* Tim's stuff */
/* fix for href link in event listing, to force line break inside container. */
.tribe-events-meta-group-organizer .url a {
word-wrap: break-word;
}
Do you get better results with that small tweak?