I listened to https://www.localfirst.fm/18 recently from Electric-SQL. One of the things James mentioned was that Electric lets you use commodity CDNs for distributing sync data, which takes the load off your main Postgres and servers.

This seems like a good pattern, but of lower value for a SaaS app with many customers storing private data in your service. This is because the cache hit-rate for any particular company's data would be low. Is this an accurate assessment, or did I misunderstand something?