Mike, my man!
Thanks for reporting this bug. I logged it with our developers and asked them to include a hook here: https://github.com/moderntribe/event-tickets/blob/4.3.2/src/Tribe/Attendees_Table.php#L114-L129
The screenshot from that KB article seems to indicate the event_tickets_attendees_table_ticket_column hook used to be where the Purchaser column is now (at least visually)
I’ll mark this ticket as Pending Fix, which means this thread should receive a reply once the applicable fix has been released. I cannot guarantee when it will be fixed as it’s in the development team’s hands now. They need to assign it, code it, test it, and schedule it for release.
I apologize for this issue and appreciate your understanding and patience.