Any joy with this?
We really do need a new Topic to be created for each event, rather than a single event Topic controlling a whole bunch of events visible in the calendar.
At the moment the only feasible workaround is to manually make a bunch of new Topics. This of course fills up the Latest feed in a most annoying fashion (which needs mitigation somehow), as well as requiring that you are careful not to over-notify. I guess that highlights some of the challenges in bringing this feature to life.