Yep. When it does go dark, hope the client has a large enough cache to hold on to whatever was being used until comms are restored.
I use google docs for a few mundane things that wouldn’t mean anything to anyone except to treat insomnia.
For document sharing and development Google Docs can’t be beat, and connectivity issues are small potatoes compared to the problem of constant changes to the software (and, speaking from experience, not only in Google Docs.)