Hey @ellsworthamerican,
I’m sorry for your and your client’s frustrations around this – we moved a lot of the filtering/sorting column functionality out of The Events Calendar into its own free plugin now, called Advanced Post Manger. Download and install this on your site here → https://wordpress.org/plugins/advanced-post-manager/
That should give you a “filters and columns” control panel that will enable the manual re-activation of the Organizer and Venue columns, like in this screenshot for example:

While the decision to split this into a separate plugin may seem odd, we did it because the post type filtering we built for all of this is, if I can say myself, rather quite powerful. And so keeping it locked up within just our own Events calendar plugins felt a little underwhelming; we released this as a separate thing now so that people can use it with all of their own custom post types, too, and not just events.
Apologies for the length of this reply; just wanted to fill in some back story about the decision and about how things currently are.
If you install and activate APM on your site, the functionality should be restored 🙂
Cheers!
George