No, this has more to do with uploading your sheets to the cloud. "It's so the Assistant can see it! No other reason! Honest!!! We wouldn't dare do anything else

No, this has more to do with uploading your sheets to the cloud. "It's so the Assistant can see it! No other reason! Honest!!! We wouldn't dare do anything else with your sheet." More seriously, making spreadsheet formatted data more easily consumable by curve fitting ML algorithms actually can be useful. I would just would want total control of where that data goes, and unless you roll your own, or have a contract to purchase your own, you don't get that.