Thanks for following up J.P., and sorry to hear our plugin won’t fully cover your project requirements.
Literally, just adding/deleting an event in Google Calendar would populate to the WordPress site.
Please note that if you set up a recurring import (daily, for example) all new events will be added. You are right on the part that deleted events in the G Calendar won’t be deleted in WordPress. We know this is a bummer for some use cases (like yours) and we do have this ‘full sync’ feature in our long term road-map, but it’s a rather complex feature to develop and I don’t think we are going to see this baked in the near future.
Please let me know if there’s anything else I can help you with,
Best,
Nico