No -- due to how GoToWebinar indicates 'Series' or recurring events, eTrigue will only record the first time that a GoToWebinar recurring event is attended by a same attendee. If the same attendee attends a subsequent series or recurrence of the event, their repeat attendance will not be identifiable to the eTrigue Event integration and will NOT be recorded in the attendee’s prospects details.
To distinguish between unique events, users should create events that occur 'Once'.