This might be related to what potentially looks like a bug with standalone apps loading older cached JavaScript on the device (ex: you install an old standalone app, then install a new one, and see the old JS): https://github.com/expo/expo/issues/1122. This isn’t intended behavior and could be a bug.
You shouldn’t have to call Expo.Util.reload() in most projects unless you’ve just received a notification about a JS bundle update and the user wants to reload the app.